Patent US2646038A successfully refreshed from Google Patents.
Patent US4451600A successfully refreshed from Google Patents.
US4451600A
Expired / Lapsed
US
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Additive for coating compositions
Assignee: EIDP Inc
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Filing: 1982-12-20
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Granted: 1984-05-29
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Expires: 2002-12-20
Abstract
Abstract An additive for coating compositions which is a blend of (A) 20-50% by weight of a polyisocyanate having the formula ##STR1## where R 1 is (CH 2 ) 6' (B) 1-15% by weight of an ester of a polyalkylene glycol alkyl alkylate, an alkyl phthalate or an alkyl aromatic phthalate (C) 1-10% by weight of a blend of ultraviolet light stabilizers and (D) 25-78% by weight of organic solvent; the additive can be added to acrylic lacquers, nitrocellulose lacquers, acrylic-alkyd enamels and acrylic polyurethane enamels to provide flexible finishes for flexible substrates used in automobile and truck bodies.
Inventors
- 👤 Grant C. Fry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:59
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/77; C08G18/78; C08G18/7806; C08G18/7818; C08G18/7831; C09D101/00; C09D101/08; C09D101/16; C09D101/18; C09D175/00; C09D175/04; C08L; C08L67/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
68 words
An additive for coating compositions which comprises about: (A) 20-50% by weight of a polyisocyanate having the formula ##STR4## where R 1 is (CH 2 ) 6 , (B) 1-15% by weight of polyethylene glycol diethyl hexoate, (C) 1-10% by weight of a blend of ultraviolet light stabilizers comprising a benzotriazole ultraviolet light stabilizer and a hindered amine light stabilizer, and (D) 25-78% by weight of organic solvent.
Claim 2
Dependent Claim
68 words
An additive for coating compositions which comprises about: (A) 20-50% by weight of a polyisocyanate having the formula ##STR4## where R 1 is (CH 2 ) 6 , (B) 1-15% by weight of polyethylene glycol diethyl hexoate, (C) 1-10% by weight of a blend of ultraviolet light stabilizers comprising a benzotriazole ultraviolet light stabilizer and a hindered amine light stabilizer, and (D) 25-78% by weight of organic solvent.
Claim 3
Dependent Claim
19 words
The additive of claim 1 in which the blend of ultraviolet light stabilizers consists essentially of 2-[2'-hydroxy-3'5'-1(1-1-dimethyl-propyl)phenyl]benzotriazole and di-[4-(2,2,6,6-tetramethylpiperidyl)]sebacate.
Claim 4
Dependent Claim
19 words
The additive of claim 1 in which the organic solvent comprises ethyl acetate, toluene and diethylene glycol monobutyl ether.
Claim 5
Dependent Claim
38 words
A coating composition containing 10-70% by weight of a binder and 90-30% by weight of a liquid carrier and containing about 10-100% by weight, based on the weight of the coating composition of the additive of claim 1.
Claim 6
Dependent Claim
24 words
The coating composition of claim 4 in which the composition contains pigments in a pigment to binder weight ratio of about 1:100 to 200:100.
Claim 7
Dependent Claim
14 words
The coating composition of claim 5 in which the binder comprises an acrylic polymer.
Claim 8
Dependent Claim
14 words
The coating composition of claim 5 in which the binder comprises a nitrocellulose polymer.
Claim 9
Dependent Claim
17 words
The coating composition of claim 5 in which the binder comprises an acrylic vinyl oxazoline ester polymer.
Claim 10
Dependent Claim
23 words
The coating composition of claim 4 in which the binder comprises an acrylic resin containing reactive hydroxyl groups and a polyisocyanate crosslinking resin.
Claim 11
Dependent Claim
10 words
A flexible substrate coated with the composition of claim 4.
Claim 12
Dependent Claim
14 words
The flexible substrate of claim 10 in which the substrate is a thermoplastic polyurethane.
Claim 13
Dependent Claim
15 words
The flexible substrate of claim 10 in which the substrate is an injection molded polyurethane.
References Cited (Backward Citations)
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US3844993A
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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) | 1987-05-29 | 1987-11-28 | 1988-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-29 | 1991-11-28 | 1992-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-29 | 1995-11-28 | 1996-05-29 | $7700.00 | Window Closed / Lapsed |