US4391687A
Expired / Lapsed
US
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Photoactive mixture of acrylic monomers and chromophore-substituted halomethyl-1-triazine
Assignee: 3M Co
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Filing: 1982-02-16
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Granted: 1983-07-05
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Expires: 2002-02-16
Abstract
Abstract Photopolymerizable mixture of (a) acrylic monomer such as 95 parts of an alkyl acrylate and 5 parts of acrylic acid and (b) 0.01 to 2 parts by weight of a chromophore-substituted-halomethyl-s-triazine such as ##STR1## The novel mixtures are primarily useful as pressure-sensitive adhesive mixtures.
Inventors
- 👤 George F. Vesley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:33
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/031; C; C08; C08F; C08F2/00; C08F2/46; C08F2/48; C08F2/50; C08F20/00; C08F20/02; C08F20/10; C08F20/12; C09; C09B; C09B69/00; C09B69/10; C09B69/109; C09J; C09J133/00; C09J133/04; C09J133/06; C09J133/08; C09J7/00; C09J7/30; C09J7/38; C09J7/381; C09J7/385; C08L; C08L2666/00; C08L2666/28; C08L2666/36; C09J2301/00; C09J2301/30; C09J2301/302; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/12; Y10S430/121
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
81 words
A photoactive mixture comprising by weight (a) 100 parts of a composition or a polymer of 50-100 parts of acrylic monomer and 0-50 parts of copolymerizable monoethylenically unsaturated monomer and (b) 0.01 to 2 parts of a chromophore-substituted halomethyl-s-triazine of the formula ##STR13## wherein R 1 , R 2 , R 3 , and R 4 are independently hydrogen or alkoxy groups, and 1 to 3 of R 1 , R 2 , R 3 , and R 4 are hydrogen.
Claim 2
Dependent Claim
81 words
A photoactive mixture comprising by weight (a) 100 parts of a composition or a polymer of 50-100 parts of acrylic monomer and 0-50 parts of copolymerizable monoethylenically unsaturated monomer and (b) 0.01 to 2 parts of a chromophore-substituted halomethyl-s-triazine of the formula ##STR13## wherein R 1 , R 2 , R 3 , and R 4 are independently hydrogen or alkoxy groups, and 1 to 3 of R 1 , R 2 , R 3 , and R 4 are hydrogen.
Claim 3
Dependent Claim
18 words
A photoactive mixture as defined in claim 1 wherein said alkoxy groups have at most 12 carbon atoms.
Claim 4
Dependent Claim
17 words
A photoactive mixture as defined in claim 2 wherein at least two of said groups are alkoxy.
Claim 5
Dependent Claim
19 words
A photoactive mixture as defined in claim 3 wherein two adjacent alkoxy groups are interconnected to form a ring.
Claim 6
Dependent Claim
37 words
A photoactive mixture as defined in claims 1 or 2 wherein said composition or polymer (a) is a composition which is partially polymerized and has a coatable viscosity of 300 to 20,000 centipoises at ordinary room temperature.
Claim 7
Dependent Claim
21 words
The product of photopolymerizing the partially photopolymerized composition as defined in claim 5 to about 100% conversion of the unsaturated moiety.
Claim 8
Dependent Claim
23 words
A photoactive mixture as defined in claims 1 or 2 wherein said composition or polymer (a) is a polymer of an alkyl acrylate.
Claim 9
Dependent Claim
14 words
A solution of a photoactive mixture as defined in claim 7 in organic solvent.
Claim 10
Dependent Claim
27 words
A photoactive mixture as defined in claim 1 wherein the s-triazine (b) is selected from the group consisting of ##STR14## wherein n is 1, 2 or 3.
Claim 11
Dependent Claim
67 words
A photoactive mixture as defined in claim 1 wherein the composition or polymer (a) comprises a composition or partially polymerized composition of (1) 88-99 parts of alkyl acrylate having 4-12 carbon atoms in its alkyl groups or alkyl acrylates having an average of 4-12 carbon atoms in their alkyl groups and (2) correspondingly 12-1 parts of said copolymerizable monomer and is polymerizable to a pressure-sensitive adhesive state.
Claim 12
Dependent Claim
22 words
A photoactive mixture as defined in claims 1 or 10 wherein at least part of said copolymerizable monomer has highly polar groups.
Claim 13
Dependent Claim
41 words
A photoactive mixture as defined in claim 11 wherein the copolymerizable monomer having highly polar groups is at least one of acrylic acid, methacrylic acid, itaconic acid, acrylamide, methacrylamide, acrylonitrile, methacrylonitrile, N-substituted acrylamides, hydroxyalkyl acrylates, cyanoethyl acrylate, N-vinylpyrrolidone, and maleic anhydride.
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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) | 1986-07-04 | 1987-01-03 | 1987-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-04 | 1991-01-03 | 1991-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-04 | 1995-01-03 | 1995-07-05 | $7700.00 | Window Closed / Lapsed |