Claims
- 1. A polyester resin which has lower shrinkage during curing and excellent thermal stability which is the product produced by the steps comprising
- (A) reacting an alpha, beta-ethylenically unsaturated dicarboxylic anhydride with from 0.1 to 0.9 moles of water per mole of anhydride at a temperature ranging from 30.degree. C. to 150.degree. C. for a period of time to complete the anhydride hydrolysis,
- (B) adding about 0.2 to 1.3 moles of a C.sub.10 hydrocarbon concentrate per mole of anhydride to the reaction mixture from step A,
- (C) heating the mixture from step B at a temperature ranging from 80.degree. to 130.degree. C. for a period of time sufficient to carry out the addition reaction,
- (D) heating the reaction product of step C at a temperature ranging from 140.degree. to 185.degree. C. for a period of time to complete the Diels-Alder reaction,
- (E) adding about 0.5 to 1.5 moles of a polyol per mole of anhydride, and
- (F) heating the mixture of step E at a temperature range from 140.degree. C. to 215.degree. C. for a time sufficient to produce a polyester resin.
- 2. The polyester resin of claim 1 wherein a major portion of said C.sub.10 concentrate is added to the reaction mixture from Step A and the remaining portion of said C.sub.10 concentrate is added to the reaction mixture from Step C.
- 3. The polyester resin of claim 1 wherein the polyol is added before Step D.
- 4. The polyester resin as set forth in claims 1, 2, or 3 wherein the unsaturated discarboxylic anhydride is maleic anhydride.
- 5. A crosslinkable polyester blend which comprises the polyester resin of claims 1, 2, or 3 blended with a liquid ethylenically unsaturated monomer wherein the weight ratio of polyester resin to monomer is in the range from about 5:1 to 1:2.
- 6. The cured polyester blend set forth in claim 5.
- 7. A polyester resin which has lower shrinkage during curing and excellent thermal stability which is the product produced by the steps comprising
- (A) reacting an alpha, beta-ethylenically unsaturated dicarboxylic anhydride with from 0.1 to 0.9 moles of water per mole of anhydride at a temperature ranging from 70.degree. C. to 90.degree. C. for a period of time to complete the anhydride hydrolysis,
- (B) adding about 0.2 to 1.3 moles of a C.sub.10 hydrocarbon concentrate per mole of anhydride to the reaction mixture from step A,
- (C) heating the mixture from step B at a temperature ranging from 95.degree. to 110.degree. C. for a period of time sufficient to carry out the addition reaction,
- (D) heating the reaction product of step C at a temperature ranging from 155.degree. to 180.degree. C. for a period of time to complete the Diels-Alder reaction,
- (E) adding about 0.5 to 1.5 moles of a polyol per mole of anhydride, and
- (F) heating the mixture of Step E at a temperature range from 140.degree. C. to 215.degree. C. for a time sufficient to produce a polyester resin.
- 8. The polyester resin as set forth in claim 7 wherein the unsaturated dicarboxylic anhydride is maleic anhydride.
- 9. A crosslinkable polyester blend which comprises the polyester resin of claim 7 blended with a liquid ethylenically unsaturated monomer wherein the weight ratio of polyester resin to monomer is in the range from about 5:1 to 1:2.
- 10. The cured polyester blend set forth in claim 9.
- 11. A polyester resin which has lower shrinkage during curing and excellent thermal stability which is the product produced by the steps comprising
- (A) reacting an alpha, beta-ethylenically unsaturated dicarboxylic anhydride with from 0.45 to 0.65 moles of water per mole of anhydride at a temperature ranging from 30.degree. C. to 150.degree. C. for a period of time to complete the anhydride hydrolysis,
- (B) adding about 0.6 to 0.8 moles of a C.sub.10 hydrocarbon concentrate per mole of anhydride to the reaction mixture from step A,
- (C) heating the mixture from step B at a temperature ranging from 80.degree. to 130.degree. C. for a period of time sufficient to carry out the addition reaction,
- (D) heating the reaction product of step C at a temperature ranging from 140.degree. to 185.degree. C. for a period of time to complete the Diels-Alder reaction, and
- (E) adding about 0.5 to 1.5 moles of a polyol per mole of anhydride, and
- (F) heating the mixture of Step E at a temperature range from 140.degree. C. to 215.degree. C. for a time sufficient to produce a polyester resin.
- 12. The polyester resin as set forth in claim 11 wherein the unsaturated dicarboxylic anhydride is maleic anhydride.
- 13. A crosslinkable polyester blend which comprises the polyester resin of claim 12 blended with a liquid ethylenically unsaturated monomer wherein the weight ratio of polyester resin to monomer is in the range from about 5:1 to 1:2.
- 14. The cured polyester blend set forth in claim 13.
Parent Case Info
cl CROSS REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of Ser. No. 082,245 filed Oct. 5, 1979, now abandoned.
US Referenced Citations (6)
Non-Patent Literature Citations (1)
Entry |
Zimmerman et al., "Die Modifizierung ungesattigter Polyester mit Dicyclopentadien" Fette-Seifen-Anstrichmittel 66, #9, 670-678, 1964. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
82245 |
Oct 1979 |
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