US4920037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photopolymerizable composition
Assignee: Mitsubishi Chemical Corp
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Filing: 1989-09-13
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Granted: 1990-04-24
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Expires: 2009-09-13
Abstract
Abstract Disclosed herein is a photopolymerizable composition containing at least (A) a high-molecular compound with a weight-average molecular weight of not less than 10,000 having a polymerizable double bond in the side chain, and (B) a polymerizable monomer represented by the following formula (I): <IMAGE> (I) (wherein R1, R2 and R3 represent hydrogen atom, <IMAGE> and two or more of them are not hydrogen atom at the same time).
Inventors
- 👤 Noriaki Takahashi
- 👤 Noriko Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:17
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/025; G03F7/027
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
136 words
A photopolymerizable composition, comprising: (a) about 10-80% by weight of a diallyl phthalate polymer having a weight-average molecular weight not less than 10,000 or a (meth)acrylic polymer having a weight-average molecular weight of not less than 10,000 and having repeating units therein of the formula: ##STR17## wherein R 4 and R 5 are the same or different and represent a hydrogen atom or a methyl group, and R 6 represents a group of the formula: ##STR18## (b) a compound having the formula: ##STR19## wherein R 1 , R 2 and R 3 represent a hydrogen atom, or a group of the formula: ##STR20## with the proviso that not more than one of R 1 , R 2 or R 3 is a hydrogen atom at the same time; and (c) an effective amount of a photoinitiator.
Claim 2
Dependent Claim
136 words
A photopolymerizable composition, comprising: (a) about 10-80% by weight of a diallyl phthalate polymer having a weight-average molecular weight not less than 10,000 or a (meth)acrylic polymer having a weight-average molecular weight of not less than 10,000 and having repeating units therein of the formula: ##STR17## wherein R 4 and R 5 are the same or different and represent a hydrogen atom or a methyl group, and R 6 represents a group of the formula: ##STR18## (b) a compound having the formula: ##STR19## wherein R 1 , R 2 and R 3 represent a hydrogen atom, or a group of the formula: ##STR20## with the proviso that not more than one of R 1 , R 2 or R 3 is a hydrogen atom at the same time; and (c) an effective amount of a photoinitiator.
Claim 3
Dependent Claim
33 words
The photopolymerizable composition according to claim 1, further containing at least one of N-vinyl-2-pyrrolidone, urethane(meth)acrylate compounds and monomers having the structural units represented by the following formula (II), and a coating solvent: ##STR21##
Claim 4
Dependent Claim
16 words
The composition according to claim 1, having a viscosity in the range of about 100-1,500 cps.
Claim 5
Dependent Claim
32 words
The composition according to claim 3, wherein the weight-average molecular weight of the high-molecular compound having a polymerizable double bond in the side chain is in the range of 30,000 to 300,000.
Claim 6
Dependent Claim
22 words
The composition according to claim 3, further containing the inorganic fine particles having an average diameter of not more than 10 μm.
Claim 7
Dependent Claim
41 words
The composition according to claim 2, wherein based on the total solid content, the content of at least one of N-vinyl-2-pyrrolidone, urethane(meth)acrylate compounds and monomers having the structural units represented by the formula (II) is not more than 40% by weight.
Claim 8
Dependent Claim
25 words
The composition according to claim 5, wherein based on the total solid content, the content of inorganic fine particles is 10 to 50% by weight.
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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) | 1993-04-23 | 1993-10-23 | 1994-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-23 | 1997-10-23 | 1998-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-23 | 2001-10-23 | 2002-04-24 | $7700.00 | Window Closed / Lapsed |