US4451600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Additive for coating compositions
Assignee: EIDP Inc
•
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 04:18
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)
US3558564A
Cited
US3776878A
Cited
US3844993A
Cited
US4131571A
Cited
US4168249A
Cited
US4315848A
Cited
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 |