US4031049A — Polyurethane cross-linking agents

Claim 1

Independent Claim 99 words

The process of making a highly resilient cellular polyurethane which comprises reacting a polyalkylene polyol having reactive hydrogen atoms as determined by the Zerewitinoff method, an organic poly-functional isocyanate, water, and a gel catalyst, said reduction being carried out in the presence of a blowing catalyst and a cross-linking agent comprising at least one compound selected from those of the formula: ##STR10## wherein R is selected from the group consisting of a hydrocarbon and a hydrocarbon bearing a non-reactive substituent, and R' is selected from the group consisting of hydrogen, a hydrocarbon and a hydrocarbon bearing a non-reactive substituent.

Claim 2

Dependent Claim 99 words

The process of making a highly resilient cellular polyurethane which comprises reacting a polyalkylene polyol having reactive hydrogen atoms as determined by the Zerewitinoff method, an organic poly-functional isocyanate, water, and a gel catalyst, said reduction being carried out in the presence of a blowing catalyst and a cross-linking agent comprising at least one compound selected from those of the formula: ##STR10## wherein R is selected from the group consisting of a hydrocarbon and a hydrocarbon bearing a non-reactive substituent, and R' is selected from the group consisting of hydrogen, a hydrocarbon and a hydrocarbon bearing a non-reactive substituent.

Claim 3

Dependent Claim 17 words

The process of making a cellular polyurethane as claimed in claim 1 wherein said R' is hydrogen.

Claim 4

Dependent Claim 17 words

The process of making a cellular polyurethane as claimed in claim 2 wherein said R is alkyl.

Claim 5

Dependent Claim 20 words

The process of making a cellular polyurethane as claimed in claim 1 wherein at least one cross-linking agent is bis(o-aminophenylthio)methane.

Claim 6

Dependent Claim 20 words

The process of making a cellular polyurethane as claimed in claim 1 wherein at least one cross-linking agent is bis(o-aminophenylthio)ethane.

Claim 7

Dependent Claim 21 words

The process of making a cellular polyurethane as claimed in claim 1 wherein at least one cross-linking agent is bis(o-aminophenylthio)-1,2 propane.

Claim 8

Dependent Claim 24 words

The process of making a highly resilient cellular polyurethane as claimed in claim 1 wherein said blowing catalyst is at least one tertiary amine:

Claim 9

Dependent Claim 19 words

The process of making a cellular polyurethane as claimed in claim 7 wherein said tertiary amine is N-ethyl morpholine.

Claim 10

Dependent Claim 75 words

The process of making a highly resilient cellular polyurethane as claimed in claim 1 wherein the gel catalyst is a compound selected from the group consisting of Sn(OCOR).sub. 2 and R' a SnX b wherein R and R' are hydrocarbon radicals and X is selected from the group consisting of chloride and negative residual portions of organic carboxylic acids, mercaptides, alcohols, and esters of mercaptoacids, a and b being 1-3, a plus b being 4.

Claim 11

Dependent Claim 27 words

The process of claim 1 wherein said cross-linking agent is present in an amount of 0.0001-5 parts by weight per 100 parts by weight of the polyol.

Claim 12

Dependent Claim 131 words

The process of making a highly resilient cellular polyurethane which comprises reacting 100 parts by weight of a substance having active hydrogen atoms as determined by the Zerewitinoff method, 5-300 parts by weight of an organic poly-functional isocyanate, 0.5-10 parts by weight of water, 0.005-4.2 parts by weight of gel catalyst, as a blowing catalyst 0.005 to 4.95 parts by weight of at least one tertiary amine and as a cross-linking agent 0.005 to 10 parts by weight per 100 parts by weight of polyol of at least one compound exhibiting the formula: ##STR11## wherein R is selected from the group consisting of a hydrocarbon and a hydrocarbon bearing a non-reactive substituent, and R' is selected from the group consisting of hydrogen, a hydrocarbon and a hydrocarbon bearing a non-reactive substituent.

Claim 13

Dependent Claim 131 words

The process of making a highly resilient cellular polyurethane which comprises reacting 100 parts by weight of a substance having active hydrogen atoms as determined by the Zerewitinoff method, 5-300 parts by weight of an organic poly-functional isocyanate, 0.5-10 parts by weight of water, 0.005-4.2 parts by weight of gel catalyst, as a blowing catalyst 0.005 to 4.95 parts by weight of at least one tertiary amine and as a cross-linking agent 0.005 to 10 parts by weight per 100 parts by weight of polyol of at least one compound exhibiting the formula: ##STR11## wherein R is selected from the group consisting of a hydrocarbon and a hydrocarbon bearing a non-reactive substituent, and R' is selected from the group consisting of hydrogen, a hydrocarbon and a hydrocarbon bearing a non-reactive substituent.

Claim 14

Dependent Claim 87 words

The process of making a highly resilient cellular polyurethane which comprises reacting 100 parts by weight of a substance having active hydrogen atoms as determined by the Zerewitinoff method, 5-300 parts by weight of an organic poly-functional isocyanate, 0.5-10 parts by weight of water, 0.005-4.2 parts by weight of gel catalyst, 0.005 to 4.95 parts by weight of a blowing catalyst and as a cross-linking agent 0.005 to 10 parts by weight of a compound of the formula: ##STR12## wherein R is alkyl and R' is hydrogen.

Claim 15

Dependent Claim 87 words

The process of making a highly resilient cellular polyurethane which comprises reacting 100 parts by weight of a substance having active hydrogen atoms as determined by the Zerewitinoff method, 5-300 parts by weight of an organic poly-functional isocyanate, 0.5-10 parts by weight of water, 0.005-4.2 parts by weight of gel catalyst, 0.005 to 4.95 parts by weight of a blowing catalyst and as a cross-linking agent 0.005 to 10 parts by weight of a compound of the formula: ##STR12## wherein R is alkyl and R' is hydrogen.

Claim 16

Dependent Claim 114 words

A novel composition suitable for use as a cross-linking agent in the production of highly resilient cold cure polyurethane foams formed by the reaction of an organic compound having reactive hydrogen atoms as determined by the Zerewitinoff method, water, and an organic polyisocyanate comprising at least one compound of the formula: ##STR13## wherein R is selected from the group consisting of a hydrocarbon and a hydrocarbon bearing a non-reactive substituent, and R' is selected from the group consisting of hydrogen, a hydrocarbon and a hydrocarbon bearing a non-reactive substituent, and as a blowing catalyst at least one tertiary amine selected from the group consisting of N-alkyl morpholines and cyclic triethylene diamines and mixtures thereof.

Claim 17

Dependent Claim 114 words

A novel composition suitable for use as a cross-linking agent in the production of highly resilient cold cure polyurethane foams formed by the reaction of an organic compound having reactive hydrogen atoms as determined by the Zerewitinoff method, water, and an organic polyisocyanate comprising at least one compound of the formula: ##STR13## wherein R is selected from the group consisting of a hydrocarbon and a hydrocarbon bearing a non-reactive substituent, and R' is selected from the group consisting of hydrogen, a hydrocarbon and a hydrocarbon bearing a non-reactive substituent, and as a blowing catalyst at least one tertiary amine selected from the group consisting of N-alkyl morpholines and cyclic triethylene diamines and mixtures thereof.

Claim 18

Dependent Claim 14 words

The composition of claim 13 wherein at least one tertiary amine is N-ethyl morpholine.

Claim 19

Dependent Claim 15 words

The composition of claim 13 wherein at least one tertiary amine is cyclic triethylene diamine.

Claim 20

Dependent Claim 9 words

The composition of claim 13 wherein R' is hydrogen.

Claim 21

Dependent Claim 9 words

The composition of claim 16 wherein R is alkyl.

Claim 22

Dependent Claim 115 words

A novel composition for use as a catalyst in the production of cellular polyurethane which comprises 0.005 to 10 parts of at least one compound of the formula: ##STR14## wherein R and R' are hydrocarbons selected from the group consisting of alkyl, alkenyl, cycloalkyl, aryl, alkaryl, and aralkyl hydrocarbon and as an auxiliary catalyst 0.005 to 10 parts of a compound selected from the group consisting of Sn(OCOR) 2 and R' a SnX b wherein R and R' are hydrocarbon radicals and X is selected from the group consisting of chloride and negative residual portions of organic carboxylic acids, mercaptides, alcohols, and esters of mercaptoacids, a and b being 1-3, a plus b being 4.

Claim 23

Dependent Claim 115 words

A novel composition for use as a catalyst in the production of cellular polyurethane which comprises 0.005 to 10 parts of at least one compound of the formula: ##STR14## wherein R and R' are hydrocarbons selected from the group consisting of alkyl, alkenyl, cycloalkyl, aryl, alkaryl, and aralkyl hydrocarbon and as an auxiliary catalyst 0.005 to 10 parts of a compound selected from the group consisting of Sn(OCOR) 2 and R' a SnX b wherein R and R' are hydrocarbon radicals and X is selected from the group consisting of chloride and negative residual portions of organic carboxylic acids, mercaptides, alcohols, and esters of mercaptoacids, a and b being 1-3, a plus b being 4.

Claim 24

Dependent Claim 42 words

A novel catalyst composition suitable for use in the production of polyurethane foams as claimed in claim 18 wherein the catalyst and auxiliary catalyst are present in the ratio of 0.01 to 5 parts of the former per part of the latter.

Claim 25

Dependent Claim 87 words

A novel cellular polyurethane composition which comprises a cellular polyurethane containing as a blowing catalyst and curing agent a mixture of at least one tertiary amine selected from the group consisting of N-alkyl morpholines and cyclic triethylene diamines and mixtures thereof and a nitrogen-containing organic compound of the formula: ##STR15## wherein R is selected from the group consisting of a hydrocarbon and a hydrocarbon bearing a non-reactive substituent, and R' is selected from the group consisting of hydrogen, a hydrocarbon and a hydrocarbon bearing a non-reactive substituent.

Claim 26

Dependent Claim 87 words

A novel cellular polyurethane composition which comprises a cellular polyurethane containing as a blowing catalyst and curing agent a mixture of at least one tertiary amine selected from the group consisting of N-alkyl morpholines and cyclic triethylene diamines and mixtures thereof and a nitrogen-containing organic compound of the formula: ##STR15## wherein R is selected from the group consisting of a hydrocarbon and a hydrocarbon bearing a non-reactive substituent, and R' is selected from the group consisting of hydrogen, a hydrocarbon and a hydrocarbon bearing a non-reactive substituent.

Claim 27

Dependent Claim 17 words

A novel cellular polyurethane composition as claimed in claim 20 wherein the nitrogen-containing organic compound is bis(o-aminophenylthio)methane.

Claim 28

Dependent Claim 17 words

A novel cellular polyurethane composition as claimed in claim 20 wherein the nitrogen-containing organic compound is bis(o-aminophenylthio)ethane.

Claim 29

Dependent Claim 18 words

A novel cellular polyurethane composition as claimed in claim 20 wherein the nitrogen-containing organic compound is bis(o-aminophenylthio)-1,2 propane.

Claim 30

Dependent Claim 81 words

A process of making an elastomeric polyurethane plastic which comprises mixing an organic polyisocyanate with a mixture of an organic compound having reactive hydrogen atoms as determined by the Zerewitinoff method having a molecular weight of at least about 500, and 0.005 to 10 parts by weight per 100 parts by weight of polyol of at least one compound of the formula: ##STR16## wherein R is selected from the group consisting of a hydrocarbon and a hydrocarbon bearing a non-reactive substituent.

Claim 31

Dependent Claim 81 words

A process of making an elastomeric polyurethane plastic which comprises mixing an organic polyisocyanate with a mixture of an organic compound having reactive hydrogen atoms as determined by the Zerewitinoff method having a molecular weight of at least about 500, and 0.005 to 10 parts by weight per 100 parts by weight of polyol of at least one compound of the formula: ##STR16## wherein R is selected from the group consisting of a hydrocarbon and a hydrocarbon bearing a non-reactive substituent.

Claim 32

Dependent Claim 88 words

The process of making an elastomeric polyurethane plastic which comprises mixing an organic compound having reactive hydrogen atoms as determined by the Zerewitinoff method having a molecular weight of at least about 500, an organic polyisocyanate thereby forming a prepolymer, and curing said prepolymer by mixing therein 0.005 to 10 parts by weight per 100 parts by weight of polyol of at least one curing agent of the formula: ##STR17## wherein R is selected from the group consisting of a hydrocarbon and a hydrocarbon bearing a non-reactive substituent.

Claim 33

Dependent Claim 88 words

The process of making an elastomeric polyurethane plastic which comprises mixing an organic compound having reactive hydrogen atoms as determined by the Zerewitinoff method having a molecular weight of at least about 500, an organic polyisocyanate thereby forming a prepolymer, and curing said prepolymer by mixing therein 0.005 to 10 parts by weight per 100 parts by weight of polyol of at least one curing agent of the formula: ##STR17## wherein R is selected from the group consisting of a hydrocarbon and a hydrocarbon bearing a non-reactive substituent.

Claim 34

Dependent Claim 83 words

In the preparation of an elastomeric polyurethane plastic by a process which comprises reacting an organic compound having reactive hydrogen atoms as determined by the Zerewitinoff method and an organic polyisocyanate, the improvement which comprises reacting as a curing agent 0.005 to 10 parts by weight per 100 parts by weight of polyol of at least one compound selected from those of the formula: ##STR18## wherein R is selected from the group consisting of a hydrocarbon and a hydrocarbon bearing a non-reactive substituent.

Claim 35

Dependent Claim 83 words

In the preparation of an elastomeric polyurethane plastic by a process which comprises reacting an organic compound having reactive hydrogen atoms as determined by the Zerewitinoff method and an organic polyisocyanate, the improvement which comprises reacting as a curing agent 0.005 to 10 parts by weight per 100 parts by weight of polyol of at least one compound selected from those of the formula: ##STR18## wherein R is selected from the group consisting of a hydrocarbon and a hydrocarbon bearing a non-reactive substituent.

Claim 36

Dependent Claim 88 words

A novel composition suitable for use as a curing and cross-linking agent in the production of polyurethane foams by the reaction of an organic compound having reactive hydrogen atoms as determined by the Zerewitinoff method, water and a poly-functional isocyanate comprising a compound of the formula: ##STR19## wherein R is selected from the group consisting of a hydrocarbon and a hydrocarbon bearing a non-reactive substituent, and R' is selected from the group consisting of hydrogen, a hydrocarbon and a hydrocarbon bearing a non-reactive substituent, and stannous 2-ethyl hexanoate.

Claim 37

Dependent Claim 88 words

A novel composition suitable for use as a curing and cross-linking agent in the production of polyurethane foams by the reaction of an organic compound having reactive hydrogen atoms as determined by the Zerewitinoff method, water and a poly-functional isocyanate comprising a compound of the formula: ##STR19## wherein R is selected from the group consisting of a hydrocarbon and a hydrocarbon bearing a non-reactive substituent, and R' is selected from the group consisting of hydrogen, a hydrocarbon and a hydrocarbon bearing a non-reactive substituent, and stannous 2-ethyl hexanoate.

Claim 38

Dependent Claim 75 words

The process of making an elastomeric polyurethane plastic which comprises reacting an organic compound having reactive hydrogen atoms as determined by the Zerewitinoff method with an organic polyisocyanate in the presence of 0.005 to 10 parts by weight per 100 parts by weight of polyol of at least one compound selected from those of the formula: ##STR20## wherein R is selected from the group consisting of a hydrocarbon and a hydrocarbon bearing a non-reactive substituent.

Claim 39

Dependent Claim 75 words

The process of making an elastomeric polyurethane plastic which comprises reacting an organic compound having reactive hydrogen atoms as determined by the Zerewitinoff method with an organic polyisocyanate in the presence of 0.005 to 10 parts by weight per 100 parts by weight of polyol of at least one compound selected from those of the formula: ##STR20## wherein R is selected from the group consisting of a hydrocarbon and a hydrocarbon bearing a non-reactive substituent.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1980-06-20	1980-12-20	1981-06-21	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1984-06-20	1984-12-20	1985-06-21	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1988-06-20	1988-12-20	1989-06-21	$7700.00	Window Closed / Lapsed

Polyurethane cross-linking agents

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