Photo curable blends of 2-methyoxytetrahydropyran and a cycloaliphatic diepoxide

• US 4,977,199 A
• Filed: 01/13/1989
• Issued: 12/11/1990
• Est. Priority Date: 08/29/1986
• Status: Expired due to Term

• Current Assignee: Union Carbide Chemicals And Plastics Company, Inc. (Dow, Inc.)
• Original Assignee: Union Carbide Chemicals And Plastics Company, Inc. (Dow, Inc.)
• Inventors: Koleske, Joseph V., Kwiatkowski, George T.
• Primary Examiner(s): McCamish, Marion C.
• Assistant Examiner(s): Koeckert, Arthur H.
• Application Number:
  US07/298,244
• Time in Patent Office: 697 Days
• Field of Search: 522/31, 522/170, 528/417, 528/361
• US Class Current: 522/31
• CPC Class Codes: C08G 59/226 Mixtures of di-epoxy compounds
• CPC Class Codes: C08G 59/24 carbocyclic
• CPC Class Codes: C08G 59/38 together with di-epoxy compounds
• CPC Class Codes: C08G 59/68 characterised by the catalysts used
• CPC Class Codes: G03F 7/0385 using epoxidised novolak resin

Abstract

Photopolymerizable compositions, based on 2-methoxytetrahydropyran and 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexane carboxylate, which can be applied as coatings on substrates and photocured at high speeds.

Claims

1. A photopolymerizable composition consisting essentially of 2-methoxytetrahydropyran, the diepoxide, 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexane carboxylate and an aryl sulfonium salt photoinitiator wherein the amount of 2-methoxytetrahydropyran present in said composition is about 5 to about 70 weight percent, based on the combined weight of said pyran and said diepoxide.

2. A photopolymerizable composition as defined in claim 1 wherein the amount of 2-methoxytetrahydropyran is about 10 to about 50 weight percent.

3. A photopolymerizable composition as defined in claim 1 wherein the amount of 2-methoxytetrahydropyran is about 15 to about 45 weight percent.

4. A photopolymerizable composition as defined in claim 1 wherein the photoinitiator is a polyarylsulfonium hexafluoroantimony salt.

5. The photocured product of the composition defined in claim 1.

6. A photopolymerizable composition consisting essentially of 2-methoxytetrahydropyran, the diepoxide, 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexane carboxylate, an aryl sulfonium salt photoinitiator and a polyol wherein the amount of 2-methoxytetrahydropryan present in said composition is about 5 to about 70 weight percent, based on the combined weight of said pyran and said diepoxide.

7. A photopolymerizable composition as defined in claim 6 wherein the polyol is a polylactone polyol.

8. A photopolymerizable composition as defined in claim 6 wherein the polylactone polyol is a polycaprolactone polyol.

9. A photopolymerizable composition as defined in claim 6 wherein the polyol is a polyether polyol.

10. A photopolymerizable composition as defined in claim 9 wherein the polyether polyol is polypropylene oxide polyol.