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US5328973A
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Radiation-sensitive mixture with a polymeric binder containing units of α,β-unsaturated carboxamides
Assignee: CLARIANT AZ (DEUTSCHLAND) AG
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Filing: 1992-07-31
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Granted: 1994-07-12
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Expires: 2012-07-31
Abstract
Abstract A radiation-sensitive mixture which contains a polymeric binder having acid-labile side groups and a compound which generates a strong acid on irradiation wherein the binder is a polymer built up from novel amides of alpha , beta -unsaturated carboxylic acids, is highly sensitive in the shortwave uv region and useful in the production of recording material.
Inventors
- 👤 Horst Roeschert
- 👤 Georg Pawlowski
- 👤 Klaus-Juergen Przybilla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:42
CPC Classifications
C; C07; C07C; C07C235/00; C07C235/02; C07C235/04; C07C235/08; G; G03; G03F; G03F7/00; G03F7/004; G03F7/039; C07C233/00; C07C233/01; C07C233/16; C07C233/17; C07C233/20; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/58; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/107; Y10S430/111
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
109 words
A polymer comprising units of the formula (I) ##STR4## in which R 1 is an acid-labile protecting group, R 2 is (C 1 -C 4 )-alkyl, halogenated-(C 1 -C 4 )-alkyl, halogen, CN, or hydrogen, R 3 ,4,5,6 independently of one another are aliphatic, araliphatic or aromatic radicals each independently having 1 to 20 carbon atoms and each being unsubstituted or halogen substituted, halogen, hydroxyl or hydrogen, R 7 is a hydrogen atom or a (C 1 -C 4 )-alkyl group, and R 8 and R 9 are identical or different and are hydrogen, a (C 1 -C 6 )-alkyl group or a (C 6 -C 10 )-aryl group.
Claim 2
Dependent Claim
109 words
A polymer comprising units of the formula (I) ##STR4## in which R 1 is an acid-labile protecting group, R 2 is (C 1 -C 4 )-alkyl, halogenated-(C 1 -C 4 )-alkyl, halogen, CN, or hydrogen, R 3 ,4,5,6 independently of one another are aliphatic, araliphatic or aromatic radicals each independently having 1 to 20 carbon atoms and each being unsubstituted or halogen substituted, halogen, hydroxyl or hydrogen, R 7 is a hydrogen atom or a (C 1 -C 4 )-alkyl group, and R 8 and R 9 are identical or different and are hydrogen, a (C 1 -C 6 )-alkyl group or a (C 6 -C 10 )-aryl group.
Claim 3
Dependent Claim
54 words
A polymer as claimed in claim 1, wherein R 1 is a benzyl, trialkylsilanyl, alkoxycarbonyl, tetrahydropyranyl or tetrahydrofuranyl group, R 2 is hydrogen or a methyl group, R 3 to R 6 independently of one another are each hydrogen, a hydroxyl group or a methyl group, and R 7 to R 9 are hydrogen.
Claim 4
Dependent Claim
19 words
A polymer as claimed in claim 2, which comprises at least 10 mol % of units of formula (I).
Claim 5
Dependent Claim
33 words
A polymer as claimed in claim 1, wherein the group OR 1 is a tert.-butoxycarbonyl group and OR 1 is in the ortho- or para-position relative to the --CR 8 R 9 group.
Claim 6
Dependent Claim
31 words
A polymer as claimed in claim 1 which comprises at least 10 mol % of units of the formula I, the remainder being comprised of polymerized units of other vinyl monomers.
Claim 7
Dependent Claim
141 words
A polymer as claimed in claim 5, which is a copolymer further containing polymerized units of at least one monomer selected from the group consisting of monomers of formula (III) ##STR5## in which R 2 is (C 1 -C 4 )alkyl, halogenated-(C 1 -C 4 )-alkyl, halogen, CN, or hydrogen, R 3 ,4,5,6 independently of one another are an unsubstituted or halogen-substituted aliphatic, araliphatic or aromatic radical having 1 to 20 carbon atoms, halogen, hydroxy or hydrogen, R 7 is a hydrogen atom or a (C 1 -C 4 )-alkyl group, R 8 and R 9 are identical or different and are hydrogen, a (C 1 -C 6 )-alkyl group or a (C 6 -C 10 )-aryl group, and R 1 is H or a non-acid-cleavable group, maleimide, methacrylic acid, an ester or amide of (meth)acrylic acid or a vinyl ether.
Claim 8
Dependent Claim
15 words
A polymer as claimed in claim 6, which contains units from monomers of formula (III).
Claim 9
Dependent Claim
11 words
A polymer as claimed in claim 1, which is a homopolymer.
Claim 10
Dependent Claim
12 words
A polymer as claimed in claim 1, which additionally comprises silicon-containing units.
Claim 11
Dependent Claim
32 words
A polymer as claimed in claim 9, wherein the silicon-containing units are formed by polymerizing one or more monomers selected from the group consisting of trialkyl-vinyl silanes and trialkylsilanyl acrylates and methacrylates.
Claim 12
Dependent Claim
18 words
A polymer as claimed in claim 1, which has a number average molecular weight of 2,000 to 100,000.
Claim 13
Dependent Claim
17 words
A polymer as claimed in claim 11, wherein said molecular weight is between 5,000 and 40,000 g/mol.
Claim 14
Dependent Claim
21 words
A polymer as claimed in claim 1 which is a copolymer of a plurality of different units each having formula (I).
Claim 15
Dependent Claim
19 words
A polymer as claimed in claim 1, which consists essentially of one or more units of the formula (I).
Claim 16
Dependent Claim
18 words
A polymer as claimed in claim 1, which consists of one or more units of the formula (I).
Claim 17
Dependent Claim
16 words
A polymer as claimed in claim 1, which further contains polymerized units of other vinyl monomers.
Claim 18
Dependent Claim
32 words
A polymer as claimed in claim 16, wherein the other vinyl monomers are selected from one or more of the group consisting of methacrylic acid and esters or amides of methacrylic acid.
Claim 19
Dependent Claim
13 words
A polymer as claimed in claim 1, which further contains polymerized maleimide units.
Claim 20
Dependent Claim
25 words
A polymer as claimed in claim 1, which further contains polymerized units of one or more of styrene, substituted styrenes, vinyl ethers, and vinyl esters.
Claim 21
Dependent Claim
13 words
A polymer as claimed in claim 1, wherein OR is a tert.-butoxycarbonyloxy group.
Claim 22
Dependent Claim
19 words
A polymer as claimed in claim 1, which comprises at least 10 mol % of units of formula (I).
References Cited (Backward Citations)
US4491628A
Cited
US4689288A
Cited
US4770977A
Cited
US5068163A
Cited
US5130392A
Cited
US5120629A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-07-11 | 1998-01-10 | 1998-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-11 | 2002-01-10 | 2002-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-11 | 2006-01-10 | 2006-07-12 | $7700.00 | Window Closed / Lapsed |