US4474855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated article
Assignee: EIDP Inc
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Filing: 1983-12-12
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Granted: 1984-10-02
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Expires: 2003-12-12
Abstract
Abstract Articles comprising a substrate coated with selected isocyanatoalkyl (meth)acrylate polymers or copolymers, e.g., a copolymer of 2-isocyanatoalkyl methacrylate and butyl acrylate, are claimed.
Inventors
- 👤 Darryl W. Brixius
- 👤 John A. Simms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:37
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/34; C08F220/36; C09; C09D; C09D133/00; C09D133/04; C09D133/14; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31605
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
149 words
A coated article comprising a substrate carrying a coating formed by (A) applying to the substrate an isocyanate-functional polymer of a number average molecular weight of 500-10,000 formed from at least 10% by weight of isocyanatoalkyl acrylate or isocyanatoalkyl methacrylate, polymerized alone or with a polymerizable comonomer, any polymerizable comonomer being at least one member of the group consisting of alkyl acrylates and methacrylates; styrene; ethylene; vinyl acetate; and vinyl chloride, in the presence of 1-20% by weight, based on the weight of the polymer, of a mercaptan chain-transfer agent RSH, R-- being C 4 -C 12 alkyl, phenyl, benzyl or ##STR5## where R 3 -- is C 4 -C 12 , alkyl, phenyl or benzyl and m is 0-8, at least 10% by number of the polymer molecules having in terminal position a residue of the mercaptan chain-transfer agent, and (B) curing the applied polymer upon the substrate.
Claim 2
Dependent Claim
149 words
A coated article comprising a substrate carrying a coating formed by (A) applying to the substrate an isocyanate-functional polymer of a number average molecular weight of 500-10,000 formed from at least 10% by weight of isocyanatoalkyl acrylate or isocyanatoalkyl methacrylate, polymerized alone or with a polymerizable comonomer, any polymerizable comonomer being at least one member of the group consisting of alkyl acrylates and methacrylates; styrene; ethylene; vinyl acetate; and vinyl chloride, in the presence of 1-20% by weight, based on the weight of the polymer, of a mercaptan chain-transfer agent RSH, R-- being C 4 -C 12 alkyl, phenyl, benzyl or ##STR5## where R 3 -- is C 4 -C 12 , alkyl, phenyl or benzyl and m is 0-8, at least 10% by number of the polymer molecules having in terminal position a residue of the mercaptan chain-transfer agent, and (B) curing the applied polymer upon the substrate.
Claim 3
Dependent Claim
22 words
The coated article of claim 1 wherein the polymer is formed from the monomers isocyanatoethyl methacrylate, methyl methacrylate, butyl methacrylate and mercaptan.
Claim 4
Dependent Claim
19 words
The coated article of claim 1 wherein the polymer is formed from the monomers isocyanatoethyl methacrylate, styrene and mercaptan.
Claim 5
Dependent Claim
20 words
The coated article of claim 1 wherein the polymer is formed from the monomers isocyanatoethyl methacrylate, butyl acrylate and mercaptan.
Claim 6
Dependent Claim
20 words
The coated article of claim 1 wherein the polymer is formed from the monomers isocyanatoethyl methacrylate, ethylhexyl acrylate and mercaptan.
Claim 7
Dependent Claim
22 words
The coated article of claim 1 wherein the polymer is formed from the monomers isocyanatoethyl methacrylate, methyl methacrylate, n-butyl acrylate and mercaptan.
Claim 8
Dependent Claim
22 words
The coated article of claim 1 wherein the polymer is formed from the monomers isocyanatoethyl methacrylate, methyl methacrylate, lauryl methacrylate and mercaptan.
Claim 9
Dependent Claim
21 words
The coated article of claim 1 wherein the polymer is formed from the monomers isocyanatoethyl methacrylate, butyl acrylate, styrene and mercaptan.
Claim 10
Dependent Claim
12 words
A coated article of claim 1 wherein the substrate is a metal.
Claim 11
Dependent Claim
11 words
A coated article of claim 1 wherein the substrate is flexible.
References Cited (Backward Citations)
US2718516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-02 | 1988-04-02 | 1988-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-02 | 1992-04-02 | 1992-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-02 | 1996-04-02 | 1996-10-02 | $7700.00 | Window Closed / Lapsed |