US5015701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition of vinyl ester resin, hydroxyalkyl (meth)acrylate and a styrene
Assignee: Union Carbide Chemicals and Plastics Technology LLC
•
Filing: 1985-07-26
•
Granted: 1991-05-14
•
Expires: 2005-07-26
Abstract
Abstract Described herein are curable molding compositions comprising a mixture of: (a) a vinyl ester produced by the addition of an unsaturated monocarboxylic acid to a polyepoxide and having a molecular weight greater than 300; (b) acrylic or methacrylic acid or a functionalized derivative thereof having a molecular weight of less than 300; (c) an ethylenically unsaturated monomer which is soluble in and copolymerizable with (a) and (b) and which is different from (b). The compositions can also contain one or more fibers with a melting point or a glass transition temperature above about 130° C.
Inventors
- 👤 Linda A. Domeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:17
CPC Classifications
C; C08; C08F; C08F299/00; C08F299/02; C08F299/026; Y; Y10; Y10S; Y10S525/00; Y10S525/922
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
82 words
A curable molding composition comprising a mixture of: (a) from about 25 to about 60 weight percent of a vinyl ester produced from the addition of an unsaturated monocarboxylic acid to a polyepoxide, and having a molecular weight greater than 300; (b) from about 5 to about 30 weight percent of 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, hydroxypropyl acrylate, or hydroxypropyl methacrylate; and (c) from about 25 to about 65 weight percent of an ethylenically unsaturated monomer selected from styrene, its derivatives and homologues.
Claim 2
Dependent Claim
82 words
A curable molding composition comprising a mixture of: (a) from about 25 to about 60 weight percent of a vinyl ester produced from the addition of an unsaturated monocarboxylic acid to a polyepoxide, and having a molecular weight greater than 300; (b) from about 5 to about 30 weight percent of 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, hydroxypropyl acrylate, or hydroxypropyl methacrylate; and (c) from about 25 to about 65 weight percent of an ethylenically unsaturated monomer selected from styrene, its derivatives and homologues.
Claim 3
Dependent Claim
38 words
A curable composition as defined in claim 1 wherein the unsaturated monocarboxylic acid is selected from acrylic acid, methacylic acid, crotonic acid, and acids prepared from the reaction of hydroxyalkyl acrylates or methacrylates with maleic or phthalic anhydride.
Claim 4
Dependent Claim
32 words
A curable composition as defined in claim 1 wherein the polyepoxide is saturated or unsaturated aliphatic, cycloaliphatic, aromatic or heterocyclic which may be substituted with halogen atoms, hydroxyl groups and ether radicals.
Claim 5
Dependent Claim
24 words
A curable composition as defined in claim 1 wherein the polyepoxide is an epoxidized ester of an unsaturated monohydric alcohol and unsaturated monocarboxylic acid.
Claim 6
Dependent Claim
22 words
A curable composition as defined in claim 1 wherein the polyepoxide is an epoxidized ester of unsaturated monohydric alcohol and polycarboxylic acid.
Claim 7
Dependent Claim
20 words
A curable composition as defined in claim 1 wherein the polyepoxide is an epoxidized ester of a polyethylenically unsaturated monocarboxylic
Claim 8
Dependent Claim
21 words
A curable composition as defined in claim 1 wherein the polyepoxide is an epoxidized derivative of a polyethylenically unsaturated polycarboxylic acid.
Claim 9
Dependent Claim
17 words
A curable composition as defined in claim 1 wherein the polyepoxide is an epoxidized polyethylenically unsaturated hydrocarbon.
Claim 10
Dependent Claim
28 words
A curable composition as defined in claim 1 wherein the polyepoxide is an epoxidized polyester obtained by reacting a polyhydric alcohol and an unsaturated polycarboxylic acid and/or anhydride.
Claim 11
Dependent Claim
23 words
A curable composition as defined in claim 1 wherein the polyepoxide is the glycidyl polyether of a polyhydric phenol and/or a polyhydric alcohol.
Claim 12
Dependent Claim
37 words
A curable composition as defined in claim 1 wherein the polyepoxide is of the following formula: ##STR9## wherein R 1 is hydrogen or an alkyl radical and (a) has a value of from 0.1 to about 5.
Claim 13
Dependent Claim
37 words
A curable composition as defined in claim 1 wherein the polyepoxide has the following formula: ##STR10## wherein d has values so that the average molecular weight of the saturated polyepoxide is from about 340 to about 2000.
Claim 14
Dependent Claim
14 words
A curable composition as defined in claim 1 wherein component (b) comprises 2-hydroxyethyl acrylate.
Claim 15
Dependent Claim
14 words
A curable composition as defined in claim 1 wherein component (b) comprises 2-hydroxyethyl methacrylate.
Claim 16
Dependent Claim
15 words
A curable composition as defined in claim 1 wherein the ethylenically unsaturated monomer comprises styrene.
Claim 17
Dependent Claim
13 words
A curable composition as defined in claim 1 which contains a curing inititator.
Claim 18
Dependent Claim
24 words
A curable composition as defined in claim 16 wherein the curing initiator is a perester and/or perketal, or a mixture of peresters and/or perketals.
Claim 19
Dependent Claim
19 words
A curable composition as defined in claim 16 wherein the curing initiator is an azo and/or peroxide containing compound.
Claim 20
Dependent Claim
24 words
A curable composition as defined in claim 16 wherein the curing initiator is a mixture of an azo compound and a perester and/or perketal.
Claim 21
Dependent Claim
14 words
A curable composition as defined in claim 16 which contains an acidic cure accelerator.
Claim 22
Dependent Claim
23 words
A curable composition as defined in claims 16 or 17 or 18 or 19, which contains an accelerator comprising a cobalt containing compound.
Claim 23
Dependent Claim
10 words
A molded article prepared from the composition of claim 1.
Claim 24
Dependent Claim
36 words
A molded article as defined in claim 22 which contains from about 10 to about 75 weight percent of one or more fibers having a melting point or a glass transition temperature above about 130° C.
Claim 25
Dependent Claim
23 words
A molded article as defined in claim 23 wherein the fiber is selected from fiberglass, carbon fibers, aromatic polyamide fibers, and mixtures thereof.
References Cited (Backward Citations)
US3373075A
Cited
US3301743A
Cited
US3377406A
Cited
US3432478A
Cited
US3367992A
Cited
US3256226A
Cited
US4001462A
Cited
US3676524A
Cited
US3683045A
Cited
US3996307A
Cited
US4028294A
Cited
US4144156A
Cited
US4387011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-13 | 1994-11-12 | 1995-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-13 | 1998-11-12 | 1999-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-13 | 2002-11-12 | 2003-05-14 | $7700.00 | Window Closed / Lapsed |