US4572887A
Expired / Lapsed
US
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Radiation-polymerizable mixture with crosslinkable binder
Assignee: Hoechst AG
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Filing: 1984-08-13
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Granted: 1986-02-25
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Expires: 2004-08-13
Abstract
Abstract Disclosed is a radiation-polymerizable mixture which includes a polymerizable compound, a radiation-activatable polymerization initiator and a polymeric binder with lateral cross-linking groups of the formula -CH2OR, wherein R denotes a hydrogen atom or a lower alkyl group, a lower acyl group or a lower hydroxyalkyl group. The mixture is cured by heating after development. Also disclosed is a polymerizable copying material which includes a layer comprising the mixture and a process for producing a solder mask including a laminating step for laminating a photoresist layer which includes the layer.
Inventors
- 👤 Ulrich Geissler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:07
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/24; G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/032; G03F7/033
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
120 words
A radiation-polymerizable mixture, comprising: (a) a compound which has at least two terminal ethylenically unsaturated groups and which forms a cross-linked polymer by means of addition chain polymerization initiated by free radicals, (b) a polymeric binder in an amount sufficient to produce, when heated, said cross-linked polymer, and (c) a radiation-activatable polymerization initiator in an amount sufficient to initiate polymerization, wherein said binder comprises a copolymer with units of the formula ##STR4## wherein: R' denotes a hydrogen atom or a methyl group, and R denotes a hydrogen atom, a lower alkyl group, a lower acyl group, or a lower hydroxyalkyl group, said copolymer being present in an amount sufficient to provide a sufficient naumber of ROCH 2 groups for cross-linking.
Claim 2
Dependent Claim
120 words
A radiation-polymerizable mixture, comprising: (a) a compound which has at least two terminal ethylenically unsaturated groups and which forms a cross-linked polymer by means of addition chain polymerization initiated by free radicals, (b) a polymeric binder in an amount sufficient to produce, when heated, said cross-linked polymer, and (c) a radiation-activatable polymerization initiator in an amount sufficient to initiate polymerization, wherein said binder comprises a copolymer with units of the formula ##STR4## wherein: R' denotes a hydrogen atom or a methyl group, and R denotes a hydrogen atom, a lower alkyl group, a lower acyl group, or a lower hydroxyalkyl group, said copolymer being present in an amount sufficient to provide a sufficient naumber of ROCH 2 groups for cross-linking.
Claim 3
Dependent Claim
18 words
A radiation-polymerizable mixture as claimed in claim 1, wherein said copolymer further includes units having lateral carboxyl groups.
Claim 4
Dependent Claim
39 words
A radiation-polymerizable mixture as claimed in claim 2, wherein said copolymer comprises a terpolymer which includes: an acrylic or methacrylic acid, an acryl- or methacrylamide having ROCH 2 -groups at the nitrogen, and an alkyl acrylate or alkyl methacrylate.
Claim 5
Dependent Claim
61 words
A radiation-polymerizable mixture as claimed in claim 3, wherein said terpolymer comprises about 10 to 35 percent by weight of units formed by acrylic or methacrylic acid, about 15 to 60 percent by weight of units formed by a substituted acryl- or methacrylamide and about 25 to 75 percent by weight of units formed by an alkyl acrylate or alkyl methacrylate.
Claim 6
Dependent Claim
25 words
A radiation-polymerizable mixture as claimed in claim 3, wherein said copolymer comprises an alkyl methacrylate, said alkyl group comprising about 4 to 12 carbon atoms.
Claim 7
Dependent Claim
44 words
A radiation-polymerizable mixture as claimed in claim 1, wherein the mixture comprises about 40 to 90 percent by weight of said binder, about 10 to 60 percent by weight of said polymerizable compound and about 0.01 to 10 percent by weight of said initiator.
Claim 8
Dependent Claim
30 words
A radiation-polymerizable mixture as claimed in claim 1, further comprising a low molecular weight compound, said compound being cross-linkable at an elevated temperature with said binder or said polymerizable compound.
Claim 9
Dependent Claim
22 words
A radiation-polymerizable mixture as claimed in claim 5, wherein said terpolymer comprises a polymer of methacrylic acid, N-butoxymethyl methacrylamide and hexyl methacrylate.
Claim 10
Dependent Claim
21 words
A radiation-polymerizable mixture as claimed in claim 1, wherein R denotes an alkyl group comprising about 1 to 6 carbon atoms.
Claim 11
Dependent Claim
21 words
A radiation-polymerizable mixture as claimed in claim 1, wherein R denotes an alkyl group comprising about 1 to 4 carbon atoms.
Claim 12
Dependent Claim
21 words
A radiation-polymerizable mixture as claimed in claim 1, wherein R denotes an acyl group comprising about 1 to 4 carbon atoms.
Claim 13
Dependent Claim
25 words
A radiation-polymerizable mixture as claimed in claim 4, wherein said terpolymer comprises from about 20 to 50% by weight of said substituted acryl- or methacrylamide.
Claim 14
Dependent Claim
22 words
A radiation-polymerizable mixture as claimed in claim 6, wherein said mixture comprises from about 55 to 85% by weight of said binder.
Claim 15
Dependent Claim
117 words
A radiation-polymerizable mixture, comprising: (a) from about 10 to 60 percent by weight of a compound which has at least two terminal ethylenically unsaturated groups and which forms a cross-linked polymer by means of addition chain polymerization initiated by free radicals, (b) from about 40 to 90 percent by weight of a polymeric binder, and (c) from about 0.01 to 10 percent by weight of a radiation-activatable polymerization initiator, wherein said binder comprises from about 15-60 percent by weight of a copolymer with units of the formula ##STR5## wherein: R' denotes a hydrogen atom or a methyl group and R denotes a hydrogen atom, a lower alkyl group, a lower acyl group or a lower hydroxyalkyl group.
Claim 16
Dependent Claim
117 words
A radiation-polymerizable mixture, comprising: (a) from about 10 to 60 percent by weight of a compound which has at least two terminal ethylenically unsaturated groups and which forms a cross-linked polymer by means of addition chain polymerization initiated by free radicals, (b) from about 40 to 90 percent by weight of a polymeric binder, and (c) from about 0.01 to 10 percent by weight of a radiation-activatable polymerization initiator, wherein said binder comprises from about 15-60 percent by weight of a copolymer with units of the formula ##STR5## wherein: R' denotes a hydrogen atom or a methyl group and R denotes a hydrogen atom, a lower alkyl group, a lower acyl group or a lower hydroxyalkyl group.
References Cited (Backward Citations)
US3261686A
Cited
DE2509842A1
Cited
US4247621A
Cited
US4230793A
Cited
US4230793B1
Cited
US4290870A
Cited
US4278752A
Cited
EP0015004A2
Cited
US4304923A
Cited
US4438189A
Cited
US4435496A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-24 | 1989-08-26 | 1990-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-24 | 1993-08-26 | 1994-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-24 | 1997-08-26 | 1998-02-25 | $7700.00 | Window Closed / Lapsed |