US4148765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester resins containing dicyclopentadiene
Assignee: Dow Chemical Co
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Filing: 1977-12-27
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Granted: 1979-04-10
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Expires: 1997-12-27
Abstract
Abstract Polyester resins are produced which are modified with C 10 hydrocarbon concentrate. They are superior to the known resins containing the hydrocarbon concentrate in that the dicarboxylic acid or anhydrides used in the preparation of the resins are hydrolyzed with water before or during the reaction of the hydrocarbon concentrate with the other resinous monomers.
Inventors
- 👤 Donald L. Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:07
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31616; Y10T428/3162
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
178 words
The resin produced by reacting a mixture comprising (A) a reactant selected from the group consisting of (1) an alpha, beta ethylenically unsaturated dicarboxylic acid, anhydride thereof, or mixtures thereof, (2) a saturated polycarboxylic acid or the anhydride thereof, (3) mixtures of (1) and (2), (B) about 0.03 to about 10 moles water per mole of carboxylic acid or anhydride; (C) about 0.05 mole to about 1.0 mole of a C 10 hydrocarbon concentrate per mole of carboxylic acid or anhydride, and (D) a polyol or an alkylene oxide, with the proviso that when (D) is an alkylene oxide of 2-4 carbons, (A) is at least 90% by weight of a dicarboxylic acid anhydride, and when (D) is a polyol and (A) is a polycarboxylic acid or anhydride, there is present 0-25% by weight based on the total weight of polycarboxylic acid or anhydride of (E) a monohydric alcohol having 3-18 carbon atoms, (F) a fatty acid or oil having up to 22 carbon atoms, (G) a monocarboxylic aromatic acid, or (H) mixtures of (E), (F) or (G).
Claim 2
Dependent Claim
178 words
The resin produced by reacting a mixture comprising (A) a reactant selected from the group consisting of (1) an alpha, beta ethylenically unsaturated dicarboxylic acid, anhydride thereof, or mixtures thereof, (2) a saturated polycarboxylic acid or the anhydride thereof, (3) mixtures of (1) and (2), (B) about 0.03 to about 10 moles water per mole of carboxylic acid or anhydride; (C) about 0.05 mole to about 1.0 mole of a C 10 hydrocarbon concentrate per mole of carboxylic acid or anhydride, and (D) a polyol or an alkylene oxide, with the proviso that when (D) is an alkylene oxide of 2-4 carbons, (A) is at least 90% by weight of a dicarboxylic acid anhydride, and when (D) is a polyol and (A) is a polycarboxylic acid or anhydride, there is present 0-25% by weight based on the total weight of polycarboxylic acid or anhydride of (E) a monohydric alcohol having 3-18 carbon atoms, (F) a fatty acid or oil having up to 22 carbon atoms, (G) a monocarboxylic aromatic acid, or (H) mixtures of (E), (F) or (G).
Claim 3
Dependent Claim
103 words
The unsaturated polyester produced by reacting a mixture comprising (A) a reactant selected from the group consisting of (1) an alpha, beta ethylenically unsaturated dicarboxylic acid anhydride, (2) mixtures of (1) with 1-90% by weight of a saturated polycarboxylic acid or the anhydride thereof, (3) mixtures of (1) with a mixture of a saturated polycarboxylic acid and an anhydride of a saturated polycarboxylic acid, (B) about 0.03 to about 10 moles water per mole of carboxylic acid or anhydride, (C) about 0.05 mole to about 1.0 mole of a C 10 hydrocarbon concentrate per mole of carboxylic acid anhydride, and (D) a polyol.
Claim 4
Dependent Claim
103 words
The unsaturated polyester produced by reacting a mixture comprising (A) a reactant selected from the group consisting of (1) an alpha, beta ethylenically unsaturated dicarboxylic acid anhydride, (2) mixtures of (1) with 1-90% by weight of a saturated polycarboxylic acid or the anhydride thereof, (3) mixtures of (1) with a mixture of a saturated polycarboxylic acid and an anhydride of a saturated polycarboxylic acid, (B) about 0.03 to about 10 moles water per mole of carboxylic acid or anhydride, (C) about 0.05 mole to about 1.0 mole of a C 10 hydrocarbon concentrate per mole of carboxylic acid anhydride, and (D) a polyol.
Claim 5
Dependent Claim
25 words
The resin of claim 1 wherein the mole ratio range of water to carboxylic acid or anhydride is in the range from 0.05:1 to 3:1.
Claim 6
Dependent Claim
25 words
The polyester of claim 2 wherein the mole ratio range of water to carboxylic acid or anhydride is in the range from 0.05:1 to 3:1.
Claim 7
Dependent Claim
13 words
The polyester resin of claim 2 blended with a liquid ethylenically unsaturated monomer.
Claim 8
Dependent Claim
25 words
The polyester blend of claim 5 wherein the weight ratio of polyester resin to monomer is in the range from about 4:1 to about 1:2.
Claim 9
Dependent Claim
11 words
A cured fibrous laminate made from the blend of claim 6.
Claim 10
Dependent Claim
11 words
A cured fibrous laminate made from the blend of claim 5.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-09 | 1982-10-09 | 1983-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-09 | 1986-10-09 | 1987-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-09 | 1990-10-09 | 1991-04-10 | $7700.00 | Window Closed / Lapsed |