Patent US4561950A successfully refreshed from Google Patents.
US4561950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Post-formable radiation-curing coatings
Assignee: Stamicarbon BV
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Filing: 1984-04-02
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Granted: 1985-12-31
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Expires: 2004-04-02
Abstract
Abstract Radiation curable, post-formable liquid coating compositions which cure on radiation exposure to provide coatings which resist exterior exposure are disclosed. These comprise: (1) a silicone dicarbinol diurethane diacrylate or dimethacrylate in which the carbinol groups are carried by an ethoxylate constituting from 30% to 70% of the silicone dicarbinol; (2) a linear dihydroxy-functional C4-C8 dicarboxylic acid-C2-C4 diol polyester diurethane diacrylate or dimethacrylate based on a polyester having an average molecular weight in the range of 600 to 2000; (3) isobornyl acrylate or methacrylate; and (4) acrylic or methacrylic acid. Components 1 and 2 together provide from 30% to 50% of the composition, with component 2 being present in an amount of from 0% to 65% of the total of components 1 and 2, component 3 is present in an amount of at least 30% of the composition and provides coating viscosity, and component 4 is present in an amount of at least 3% of the composition. When acrylic materials are used, and when a photoinitiator is present, ultraviolet radiation can be used to provide the radiation cure.
Inventors
- 👤 A. Frank Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:29
CPC Classifications
C; C09; C09D; C09D4/00; C08; C08F; C08F299/00; C08F299/02; C08F299/06; C08F299/065; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/61; C08G18/67; C08G18/671; C08G18/672; C09D175/00; C09D175/04; C09D175/14; C09D175/16; C09D183/00; C09D183/10; C09D183/12; Y; Y10; Y10S; Y10S525/00; Y10S525/925
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
168 words
A radiation curable, post-formable liquid coating composition comprising: (1) a silicone dicarbinol diurethane diacrylate or dimethacrylate based on a methyl or phenyl-substituted polysiloxane having a molecular weight of from 600 to 10,000, and in which the carbinol groups are carried by an ethoxylate constituting from 30% to 70% of the silicone dicarbinol; (2) a linear dihydroxy-functional C 4 -C 8 dicarboxylic acid-C 2 -C 4 diol polyester diurethane diacrylate or dimethacrylate based on a polyester having an average molecular weight in the range of 600 to 2000; (3) isobornyl acrylate or methacrylate; and (4) acrylic or methacrylic acid; said components 1 and 2 together providing from 30% to 50% of the composition, with component 2 being present in an amount of from 0% to 65% of the total of components 1 and 2, said component 3 being present in an amount of at least 30% of the composition and providing coating viscosity, and said component 4 being present in an amount of at least 3% of the composition.
Claim 2
Dependent Claim
168 words
A radiation curable, post-formable liquid coating composition comprising: (1) a silicone dicarbinol diurethane diacrylate or dimethacrylate based on a methyl or phenyl-substituted polysiloxane having a molecular weight of from 600 to 10,000, and in which the carbinol groups are carried by an ethoxylate constituting from 30% to 70% of the silicone dicarbinol; (2) a linear dihydroxy-functional C 4 -C 8 dicarboxylic acid-C 2 -C 4 diol polyester diurethane diacrylate or dimethacrylate based on a polyester having an average molecular weight in the range of 600 to 2000; (3) isobornyl acrylate or methacrylate; and (4) acrylic or methacrylic acid; said components 1 and 2 together providing from 30% to 50% of the composition, with component 2 being present in an amount of from 0% to 65% of the total of components 1 and 2, said component 3 being present in an amount of at least 30% of the composition and providing coating viscosity, and said component 4 being present in an amount of at least 3% of the composition.
Claim 3
Dependent Claim
31 words
A coating composition as recited in claim 1 in which said component 2 is present in an amount of from 40% to 60% of the total of components 1 and 2.
Claim 4
Dependent Claim
33 words
A coating composition as recited in claim 2 in which said polyester is formed by reacting ethylene glycol with adipic acid to provide a molecular weight in the range of 800 to 1600.
Claim 5
Dependent Claim
27 words
A coating composition as recited in claim 1 in which acrylates are selected for all four components, and a photoinitiator is present to enable an ultraviolet cure.
Claim 6
Dependent Claim
27 words
A coating composition as recited in claim 1 in which said acrylic acid component is present in an amount of from 7 to 18% of the composition.
Claim 7
Dependent Claim
145 words
A radiation curable, post-formable liquid coating composition comprising: (1) a silicone dicarbinol diurethane diacrylate based on a methyl or phenyl-substituted polysiloxane ethoxylated to from 40% to 60% and having a molecular of from 600 to 10,000; (2) a linear dihydroxy-functional adipic acid-ethylene glycol polyester diurethane diacrylate in which the polyester has a molecular weight in the range of 800 to 1600; (3) isobornyl acrylate; (4) acrylic acid; said components 1 and 2 together providing from 30% to 50% of the composition, with component 2 being present in an amount of from 40% to 60% of the total of components 1 to 2, said component 3 being present in an amount of at least 30% of the composition and providing coating viscosity, said component 4 being present in an amount of from 7% to 18% of the composition, and a photoinitiator to enable an ultraviolet cure.
Claim 8
Dependent Claim
145 words
A radiation curable, post-formable liquid coating composition comprising: (1) a silicone dicarbinol diurethane diacrylate based on a methyl or phenyl-substituted polysiloxane ethoxylated to from 40% to 60% and having a molecular of from 600 to 10,000; (2) a linear dihydroxy-functional adipic acid-ethylene glycol polyester diurethane diacrylate in which the polyester has a molecular weight in the range of 800 to 1600; (3) isobornyl acrylate; (4) acrylic acid; said components 1 and 2 together providing from 30% to 50% of the composition, with component 2 being present in an amount of from 40% to 60% of the total of components 1 to 2, said component 3 being present in an amount of at least 30% of the composition and providing coating viscosity, said component 4 being present in an amount of from 7% to 18% of the composition, and a photoinitiator to enable an ultraviolet cure.
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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) | 1988-12-30 | 1989-07-01 | 1989-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-30 | 1993-07-01 | 1993-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-30 | 1997-07-01 | 1997-12-31 | $7700.00 | Window Closed / Lapsed |