US3855299A
Expired / Lapsed
US
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Water soluble reaction product of epihalohydrin and alkylamines
Assignee: WR Grace and Co Conn
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Filing: 1973-06-11
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Granted: 1974-12-17
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Expires: 1993-06-11
Abstract
Abstract A water soluble reaction product is prepared by reacting an aqueous mixture of a major amount of a secondary alkylamine and a minor amount of a primary alkylamine with an epihalohydrin.
Inventors
- 👤 E Witt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:54
CPC Classifications
C; C07; C07C; C07C215/00; C07C215/02; C07C215/04; C07C215/06; C07C215/14
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
138 words
A WATER SOLUBLE PRODUCT PREPARED BY: (A) ADMIXING IN AN AQUEOUS MEDIUM: (I) A MEMBER SELECTED FROM A FIRST GROUP CONSISTING DIMETHYLAMINE AND DIETHYLAMINE; AND (II) A MEMBER SELECTED FROM A SECOND GROUP CONSISTING OF DIMETHYLAMINOPROPYLAMINE, DIMETHYLAMINOBUTYLAMINE, AND AMMONIA; (B) ADDING THERETO A MEMBER SELECTED FROM A THIRD GROUP CONSISTING OF EPICHLOROHYDRIN, EPIBROMOHYDRIN, CH2CLCHCLCH2OH, CH2CLCH2(OH)CH2CL, CH3CHCLCHCLCH2OH, AND CH3CHCLCH(OH)CH2CL WHILE MAINTAINING THE TEMPERATURE OF THE RESULTING REACTING MIXTURE AT 25*-125*C., AND (C) MAINTAINING THE TEMPERATURE OF THE MIXTURE AT 25-125*C UNTIL ITS VISCOSITY REACHES 20-20,000 CENTIPOISES, THE EQUIVALENT RATIO OF THIRD GROUP MEMBER TO SECOND GROUP MEMBER BEING 1:0.009-0.5, THE EQUIVALENT RATIO OF THIRD GROUP MEMBER TO FIRST GROUP MEMBER BEING 1:0.22-1.3, THE EQUIVALENT RATIO OF FIRST GROUP MEMBER TO SECOND GROUP MEMBER BEING GREATER THAN 1, AND THE MOLE RATIO OF FIRST GROUP MEMBER TO WATER BEING 1:1-100.
Claim 2
Dependent Claim
138 words
A WATER SOLUBLE PRODUCT PREPARED BY: (A) ADMIXING IN AN AQUEOUS MEDIUM: (I) A MEMBER SELECTED FROM A FIRST GROUP CONSISTING DIMETHYLAMINE AND DIETHYLAMINE; AND (II) A MEMBER SELECTED FROM A SECOND GROUP CONSISTING OF DIMETHYLAMINOPROPYLAMINE, DIMETHYLAMINOBUTYLAMINE, AND AMMONIA; (B) ADDING THERETO A MEMBER SELECTED FROM A THIRD GROUP CONSISTING OF EPICHLOROHYDRIN, EPIBROMOHYDRIN, CH2CLCHCLCH2OH, CH2CLCH2(OH)CH2CL, CH3CHCLCHCLCH2OH, AND CH3CHCLCH(OH)CH2CL WHILE MAINTAINING THE TEMPERATURE OF THE RESULTING REACTING MIXTURE AT 25*-125*C., AND (C) MAINTAINING THE TEMPERATURE OF THE MIXTURE AT 25-125*C UNTIL ITS VISCOSITY REACHES 20-20,000 CENTIPOISES, THE EQUIVALENT RATIO OF THIRD GROUP MEMBER TO SECOND GROUP MEMBER BEING 1:0.009-0.5, THE EQUIVALENT RATIO OF THIRD GROUP MEMBER TO FIRST GROUP MEMBER BEING 1:0.22-1.3, THE EQUIVALENT RATIO OF FIRST GROUP MEMBER TO SECOND GROUP MEMBER BEING GREATER THAN 1, AND THE MOLE RATIO OF FIRST GROUP MEMBER TO WATER BEING 1:1-100.
Claim 3
Dependent Claim
13 words
The product of claim 1 in which the second group member is dimethylaminopropylamine.
Claim 4
Dependent Claim
13 words
The product of claim 1 in which the third group member is epichlorohydrin.
Claim 5
Dependent Claim
13 words
The product of claim 1 in which the third group member is CH2ClCHClCH2OH.
Claim 6
Dependent Claim
25 words
The product of claim 1 in which the pH of the mixture is adjusted to 1-7.5 to terminate reaction when the viscosity reaches 20-10,000 centipoises.
Claim 7
Dependent Claim
135 words
A water soluble product prepared by: (a) admixing in an aqueous medium; (i) a mEmber selected from a first group consisting dimethylamine and diethylamine; and (ii) a member selected from a second group consisting of dimethylaminoprpylamine and dimethylaminobutylamine, and ammonia; (b) adding thereto a member selected from a third group consisting of epichlorohydrin and epibromohydrin, while maintaining the temperature of the resulting reacting mixture at 25*-125*C; and (c) maintaining the temperature of the mixture at 25*-125*C until its viscosity reaches 20-20,000 centipoises, the equivalent ratio of third group member to second group member being 1:0.009-0.5, the equivalent ratio of third group member to first group member being 1:0.22-1.3, the equivalent ratio of first group member to second group member being greater than 1, and the mole ratio of first group member to water being 1:1-100.
Claim 8
Dependent Claim
135 words
A water soluble product prepared by: (a) admixing in an aqueous medium; (i) a mEmber selected from a first group consisting dimethylamine and diethylamine; and (ii) a member selected from a second group consisting of dimethylaminoprpylamine and dimethylaminobutylamine, and ammonia; (b) adding thereto a member selected from a third group consisting of epichlorohydrin and epibromohydrin, while maintaining the temperature of the resulting reacting mixture at 25*-125*C; and (c) maintaining the temperature of the mixture at 25*-125*C until its viscosity reaches 20-20,000 centipoises, the equivalent ratio of third group member to second group member being 1:0.009-0.5, the equivalent ratio of third group member to first group member being 1:0.22-1.3, the equivalent ratio of first group member to second group member being greater than 1, and the mole ratio of first group member to water being 1:1-100.
Claim 9
Dependent Claim
26 words
The product of claim 1 in which the first group member is dimethylamine, the second group member is dimethylaminopropylamine, and the third group member is epichlorohydrin.
Claim 10
Dependent Claim
28 words
The composition of claim 7 in which; a. the equivalent ratio epichlorohydrin to dimethylamine is 1: 0.45; and b. the equivalent ratio of epichlorohydrin to dimethylaminopropylamine is 1:0.09.
Claim 11
Dependent Claim
25 words
The product of claim 7 in which the pH of the mixture is adjusted to 1-7.5 to terminate reaction when the viscosity reaches 2-20,000 centipoises.
Claim 12
Dependent Claim
22 words
The product of claim 9 in which the pH of the mixture is adjusted to 2-6.5 when the viscosity reaches 20-10,000 centipoises.
Claim 13
Dependent Claim
27 words
The process of claim 7 in which reacting mixture is maintained at 35*-100*C; (a) while adding the epichlorohydrin thereto; and (b) until the viscosity reaches 20-10,000 centipoises.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |