US4256622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable hydroxy resin compositions
Assignee: Dow Chemical Co
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Filing: 1980-01-07
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Granted: 1981-03-17
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Expires: 2000-01-07
Abstract
Abstract A four-component composition is disclosed comprising 100 parts of a non-aminoplast hydroxyl-bearing polymer; about 5-100 parts of a (poly)glycol monoether having an atmospheric boiling point of about 300° C. or greater; an aminoplast or phenolic resin capable of curing the hydroxyl-bearing polymer and a strong acid catalyst for the reaction between the first and third components. Optionally, a pigment may be added to the composition.
Inventors
- 👤 Harry A. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:28
CPC Classifications
C; C09; C09D; C09D161/00; C09D201/00; C09D201/02; C09D201/06
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
148 words
A curable composition comprising: (A) 100 parts by weight of a non-aminoplast hydroxyl-bearing polymer capable of curing with an aminoplast or phenolic resin which represents x-hydroxyl equivalents; (B) about 5 to about 100 parts by weight which represents y-hydroxyl equivalents of a (poly)glycol monoether represented by the formula: ##STR8## wherein R is a hydrocarbyl group of one to about twenty carbon atoms, R' is independently, each occurrence, hydrogen, methyl or ethyl, and n is a positive number, said (poly)glycol monoether having an atmospheric boiling point of about 300° C. or greater; (C) an aminoplast or phenolic resole resin, capable of curing component (A) to a tack-free state, present in a quantity such that z equivalents of said resin are present, z being equal to from about 2(x+y) up to about 10(x+y); and (D) a catalytic amount of a catalyst which catalyzes the reaction between components (A) and (C).
Claim 2
Dependent Claim
148 words
A curable composition comprising: (A) 100 parts by weight of a non-aminoplast hydroxyl-bearing polymer capable of curing with an aminoplast or phenolic resin which represents x-hydroxyl equivalents; (B) about 5 to about 100 parts by weight which represents y-hydroxyl equivalents of a (poly)glycol monoether represented by the formula: ##STR8## wherein R is a hydrocarbyl group of one to about twenty carbon atoms, R' is independently, each occurrence, hydrogen, methyl or ethyl, and n is a positive number, said (poly)glycol monoether having an atmospheric boiling point of about 300° C. or greater; (C) an aminoplast or phenolic resole resin, capable of curing component (A) to a tack-free state, present in a quantity such that z equivalents of said resin are present, z being equal to from about 2(x+y) up to about 10(x+y); and (D) a catalytic amount of a catalyst which catalyzes the reaction between components (A) and (C).
Claim 3
Dependent Claim
34 words
The composition of claim 1 wherein component (A) is selected from the group consisting of free-hydroxyl containing polyester, free-hydroxyl containing solid epoxy resins, and homo- and copolymers of vinyl alcohol, hydroxyalkylacrylates and α,β-unsaturated acids.
Claim 4
Dependent Claim
19 words
The composition of claim 1 wherein component (B) has an atmospheric boiling point of about 310° C. or greater.
Claim 5
Dependent Claim
17 words
The composition of claim 1 wherein in component (B), R' is methyl in one or more occurrences.
Claim 6
Dependent Claim
17 words
The composition of claim 1 wherein in component (B), R' is methyl in the majority of occurrences.
Claim 7
Dependent Claim
17 words
The composition of claim 1 wherein in component (B), n is equal to about 4 or greater.
Claim 8
Dependent Claim
26 words
The composition of claim 1 wherein in component (B), R' each occurrence is methyl, n is equal to about 4 or greater and R is methyl.
Claim 9
Dependent Claim
12 words
The composition of claim 1 wherein component (C) is a melamine-formaldehyde resin.
Claim 10
Dependent Claim
20 words
The composition of claim 1 wherein in component (C), z is equal to from about 2.5(x+y) up to about 8(x+y).
Claim 11
Dependent Claim
20 words
The composition of claim 1 wherein from about 0.05 to about 2 parts by weight of component (D) are present.
Claim 12
Dependent Claim
22 words
The composition of claim 1 wherein component (D) is selected from toluenesulfonic acid, sulfuric acid, ammonium salts of either, and boron trifluoride.
Claim 13
Dependent Claim
57 words
The composition of claim 1 wherein component (A) is a free-hydroxyl containing polyester, component (B) is a polyglycol monoether wherein R is methyl, R', each occurrence, is methyl and n is equal to about 4 or greater, component (C) is a hexamethoxymethyl melamine and component (D) is paratoluenesulfonic acid, sulfuric acid or the ammonium salt of either.
Claim 14
Dependent Claim
24 words
The composition of claim 1 wherein in component (B) the number of carbon atoms in R and ##STR9## combined total about 12 or greater.
Claim 15
Dependent Claim
26 words
The composition of claim 1 which has been heated at a temperature and for a length of time sufficient to cure same to a tack-free finish.
Claim 16
Dependent Claim
10 words
The composition of claim 1 which further comprises a pigment.
Claim 17
Dependent Claim
31 words
The composition of claim 1 wherein Component B is present in an amount from about 10 to about 100 parts by weight and R' is independently, each occurrence, hydrogen or methyl.
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) | 1984-03-16 | 1984-09-15 | 1985-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-16 | 1988-09-15 | 1989-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-16 | 1992-09-15 | 1993-03-17 | $7700.00 | Window Closed / Lapsed |