US4117030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl ester resin compositions containing dicyclopentadiene alkenoate
Assignee: Dow Chemical Co
•
Filing: 1977-07-11
•
Granted: 1978-09-26
•
Expires: 1997-07-11
Abstract
Abstract Thermosetting resin compositions containing vinyl ester resins having terminal unsaturation, vinyl aromatic monomers, and dicyclopentadiene alkenoate concentrates are useful to make fibrous reinforcement laminates. The use of the dicyclopentadiene alkenoate concentrate accelerates the rate at which hardness develops during room temperature cure.
Inventors
- 👤 Donald Louis Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:16
CPC Classifications
C; C08; C08F; C08F299/00; C08F299/02; C08F299/026; C08L; C08L63/00; C08L63/10; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31525
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
121 words
A thermosetting resin composition which comprises (A) about 80 to about 30% by weight of a vinyl ester resin having terminal unsaturation, (B) about 20 to about 70% by weight of an unsaturated monomer mixture of a vinyl aromatic monomer and dicyclopentadiene alkenoate concentrate comprising (a) about 50-100% by weight of compounds of the formula ##STR5## (b) about 0-30% of compounds of the formula ##STR6## (c) about 0-2% of compounds of the formula ##STR7## (d) about 0-2% of compounds of the formula ##STR8## where R is a alkenyl group having 2-4 carbon atoms and R 1 is hydrogen or a methyl group wherein the range of dicyclopentadiene alkenoate concentrate in said mixture ranges from about 5 to about 90 weight percent.
Claim 2
Dependent Claim
121 words
A thermosetting resin composition which comprises (A) about 80 to about 30% by weight of a vinyl ester resin having terminal unsaturation, (B) about 20 to about 70% by weight of an unsaturated monomer mixture of a vinyl aromatic monomer and dicyclopentadiene alkenoate concentrate comprising (a) about 50-100% by weight of compounds of the formula ##STR5## (b) about 0-30% of compounds of the formula ##STR6## (c) about 0-2% of compounds of the formula ##STR7## (d) about 0-2% of compounds of the formula ##STR8## where R is a alkenyl group having 2-4 carbon atoms and R 1 is hydrogen or a methyl group wherein the range of dicyclopentadiene alkenoate concentrate in said mixture ranges from about 5 to about 90 weight percent.
Claim 3
Dependent Claim
55 words
The resin composition of claim 1 wherein the vinyl ester resin is prepared by the reaction of about equivalent proportions of polyepoxides, with ethylenically unsaturated monocarboxylic acids, 2-hydroxyalkyl acrylate half esters of dicarboxylic acids, or mixtures of same with or without the subsequent reaction of dicarboxylic acid anhydrides with the epoxide-unsaturated monocarboxylic acid reaction product.
Claim 4
Dependent Claim
14 words
The resin composition of claim 1 wherein the dicyclopentadiene alkenoate concentrate is dicyclopentadiene acrylate.
Claim 5
Dependent Claim
11 words
A cured fibrous laminate made with the composition of claim 1.
Claim 6
Dependent Claim
11 words
A cured fibrous laminate made with the composition of claim 2.
Claim 7
Dependent Claim
11 words
A cured fibrous laminate made with the composition of claim 3.
Claim 8
Dependent Claim
12 words
A cured glass fiber laminate made with the composition of claim 1.
Claim 9
Dependent Claim
12 words
A cured glass fiber laminate made with the composition of claim 2.
Claim 10
Dependent Claim
12 words
A cured glass fiber laminate made with the composition of claim 3.
References Cited (Backward Citations)
US3373075A
Cited
US3301743A
Cited
US3377406A
Cited
GB1114585A
Cited
US3564074A
Cited
US3660526A
Cited
US3634542A
Cited
US3810826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-25 | 1982-03-27 | 1982-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-25 | 1986-03-27 | 1986-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-25 | 1990-03-27 | 1990-09-26 | $7700.00 | Window Closed / Lapsed |