US4374238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
One component in-mold coating composition comprising a composition having a plurality of polymerizable ethylenic double bonds and a material containing isocyanate
Assignee: Omnova Services Inc
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Filing: 1981-11-20
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Granted: 1983-02-15
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Expires: 2001-11-20
Abstract
Abstract An FRP molding can be in-mold coated using a one-component peroxide initiated composition of (a) a liquid crosslinkable composition having an average molecular weight of up to about 5,000, having a plurality of polymerizable ethylenic double bonds, being essentially free of active hydrogen atoms and being essentially free of isocyanate groups and (b) a material selected from the group consisting of (I) a polyisocyanate and (II) the reaction product of an excess of equivalents of a polyisocyanate and an ethylenically unsaturated compound having --NH 2 , --NH-- and/or OH groups, said reaction product being free of active hydrogen atoms.
Inventors
- 👤 Henry Shanoski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:59
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/04; C08G18/06; C08G18/28; C08G18/67; C08G18/671; C08G18/672; C08G18/70; C08G18/71
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
126 words
A one component composition useful as a thermosetting in-mold coating composition comprising (a) a liquid crosslinkable composition having an average molecular weight of up to about 5,000, having a plurality of polymerizable ethylenic double bonds, being essentially free of active hydrogen atoms and being essentially free of isocyanate groups and (b) a material selected from the group consisting of (I) a polyisocyanate and (II) the reaction product of an excess of equivalents of a polyisocyanate and an ethylenically unsaturated compound containing --NH 2 , --NH-- and/or --OH groups, said reaction product being free of active hydrogen atoms, said (b) being used in an amount sufficient to secure the adhesion of said coating composition to a molded thermoset polyester resin or vinyl ester resin glass fiber composition.
Claim 2
Dependent Claim
126 words
A one component composition useful as a thermosetting in-mold coating composition comprising (a) a liquid crosslinkable composition having an average molecular weight of up to about 5,000, having a plurality of polymerizable ethylenic double bonds, being essentially free of active hydrogen atoms and being essentially free of isocyanate groups and (b) a material selected from the group consisting of (I) a polyisocyanate and (II) the reaction product of an excess of equivalents of a polyisocyanate and an ethylenically unsaturated compound containing --NH 2 , --NH-- and/or --OH groups, said reaction product being free of active hydrogen atoms, said (b) being used in an amount sufficient to secure the adhesion of said coating composition to a molded thermoset polyester resin or vinyl ester resin glass fiber composition.
Claim 3
Dependent Claim
24 words
A composition according to claim 1 containing additionally an organic free radical peroxide initiator in an amount sufficient for curing said in-mold coating composition.
Claim 4
Dependent Claim
40 words
A composition according to claim 1 where said crosslinkable composition is a phenyl isocyanate capped polypropylene fumarate polyester containing styrene, and where (b) is (II) in which said polyisocyanate is diphenyl methane-4,4'-diisocyanate and said ethylenically unsaturated hydroxyl compound is hydroxypropylmethacrylate.
Claim 5
Dependent Claim
24 words
A composition according to claim 3 containing additionally an organic free radical peroxide initiator in an amount sufficient for curing said in-mold coating composition.
Claim 6
Dependent Claim
41 words
A composition according to claim 1 where said crosslinkable composition is a phenyl isocyanate capped bisphenol a fumarate polyester containing styrene, and where (b) is (II) in which said polyisocyanate is diphenyl methane-4,4'-diisocyanate and said ethylenically unsaturated hydroxyl compound is hydroxypropylmethacrylate.
Claim 7
Dependent Claim
24 words
A composition according to claim 5 containing additionally an organic free radical peroxide initiator in an amount sufficient for curing said in-mold coating composition.
Claim 8
Dependent Claim
44 words
A composition according to claim 1 where said crosslinkable composition is a phenyl isocyanate capped trimethylol propane trimethacrylate which contained some hydroxyl groups, and where (b) is (II) in which said polyisocyanate is diphenylmethane-4,4'-diisocyanate and said ethylenically unsaturated hydroxyl compound is hydroxy propyl methacrylate.
Claim 9
Dependent Claim
24 words
A composition according to claim 7 containing additionally an organic free radical peroxide initiator in an amount sufficient for curing said in-mold coating composition.
Claim 10
Dependent Claim
32 words
A composition according to claim 1 where said crosslinkable composition is a phenyl isocyanate capped polypropylene fumarate polyester containing styrene, and where (b) is (I) in which said polyisocyanate is diphenyl methane-4,4'-diisocyanate.
Claim 11
Dependent Claim
26 words
A composition according to claim 9 containing additionally an organic free radical peroxide initiator in an amount sufficient to effect curing of said in-mold coating composition.
Claim 12
Dependent Claim
41 words
A composition according to claim 1 where said crosslinkable composition is polyoxyethylene glycol dimethacrylate having a molecular weight of about 770 and where (b) is (II) in which said polyisocyanate is diphenyl methane-4,4'-diisocyanate and said ethylenically unsaturated hydroxyl compound is hydroxypropylmethacrylate.
Claim 13
Dependent Claim
26 words
A composition according to claim 11 containing additionally an organic free radical peroxide initiator in an amount sufficient to effect curing of said in-mold coating composition.
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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) | 1986-02-14 | 1986-08-16 | 1987-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-14 | 1990-08-16 | 1991-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-14 | 1994-08-16 | 1995-02-15 | $7700.00 | Window Closed / Lapsed |