US6107364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methyl styrene as a high index of refraction monomer
Assignee: 3M Innovative Properties Co
•
Filing: 1997-05-09
•
Granted: 2000-08-22
•
Expires: 2017-05-09
Abstract
Abstract Described are a polymerizable composition comprising methyl styrene monomer, polymers comprising monomeric units derived from methyl styrene monomers, and optical products comprising these polymers.
Inventors
- 👤 Bettie C. Fong
- 👤 David B. Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:28
CPC Classifications
C; C08; C08F; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/12; C08L; C08L25/00; C08L25/02; C08L25/16; G; G02; G02B; G02B1/00; G02B1/04; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24636; Y10T428/24645
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
25 words
A polymerizable composition comprising methyl styrene monomer of the general formula: ##STR17## one or more comonomers comprising at least one high index of refraction comonomer.
Claim 2
Dependent Claim
25 words
A polymerizable composition comprising methyl styrene monomer of the general formula: ##STR17## one or more comonomers comprising at least one high index of refraction comonomer.
Claim 3
Dependent Claim
21 words
The composition of claim 1, wherein the high index of refraction comonomer has an index of refraction of at least 1.50.
Claim 4
Dependent Claim
13 words
The composition of claim 1, wherein the comonomers comprise an unsaturated aromatic comonomer.
Claim 5
Dependent Claim
12 words
The composition of claim 1, wherein the comonomers comprise a (meth)acrylate monomer.
Claim 6
Dependent Claim
12 words
The composition of claim 1, wherein the comonomers comprise a brominated comonomer.
Claim 7
Dependent Claim
13 words
The composition of claim 1, wherein the comonomers comprise a brominated (meth)acrylate comonomer.
Claim 8
Dependent Claim
16 words
The composition of claim 1, wherein the comonomers comprise an alkyl-substituted brominated aromatic ester (meth)acrylate monomer.
Claim 9
Dependent Claim
46 words
The composition of claim 7, wherein the brominated aromatic (meth)acrylate comonomer comprises monomer of the general formula: ##STR18## wherein R can be hydrogen or methyl, R A can be a straight or branched alkyl, and x can be in the range from about 1 to 4.
Claim 10
Dependent Claim
27 words
The composition of claim 1, wherein the polymerizable composition comprises from about 5 to 15 parts by weight methyl styrene monomer, based on 100 parts polymerizable composition.
Claim 11
Dependent Claim
25 words
The composition of claim 1, comprising: from 5 to 40 parts by weight methyl styrene monomer; and from 60 to 95 parts by weight comonomer.
Claim 12
Dependent Claim
38 words
The composition of claim 1, comprising: from 5 to 25 parts by weight methyl styrene monomer; from 10 to 15 parts by weight non-halogenated (meth)acrylate monomer; and from 65 to 80 parts by weight brominated aromatic (meth)acrylate monomer.
Claim 13
Dependent Claim
25 words
A polymerizable composition comprising methyl styrene monomer of the general formula: ##STR19## wherein the polymerizable composition has an index of refraction of at least 1.55.
Claim 14
Dependent Claim
25 words
A polymerizable composition comprising methyl styrene monomer of the general formula: ##STR19## wherein the polymerizable composition has an index of refraction of at least 1.55.
Claim 15
Dependent Claim
15 words
The polymerizable composition of claim 12, wherein the index of refraction is at least 1.56.
Claim 16
Dependent Claim
20 words
An optical product comprising a polymeric material comprising monomeric units derived from methyl styrene monomer of the general formula: ##STR20##
Claim 17
Dependent Claim
20 words
An optical product comprising a polymeric material comprising monomeric units derived from methyl styrene monomer of the general formula: ##STR20##
Claim 18
Dependent Claim
22 words
The optical product of claim 14, wherein the polymeric material comprises monomeric units further derived from a high index of refraction comonomer.
Claim 19
Dependent Claim
22 words
The optical product of claim 15, wherein the high index of refraction monomer has an index of refraction of at least 1.50.
Claim 20
Dependent Claim
14 words
The optical product of claim 15, wherein the comonomer comprises an unsaturated aromatic comonomer.
Claim 21
Dependent Claim
13 words
The optical product of claim 15, wherein the comonomer comprises a (meth)acrylate monomer.
Claim 22
Dependent Claim
13 words
The optical product of claim 15, wherein the comonomer comprises a brominated comonomer.
Claim 23
Dependent Claim
14 words
The optical product of claim 15, wherein the comonomer comprises a brominated (meth)acrylate comonomer.
Claim 24
Dependent Claim
17 words
The optical product of claim 15, wherein the comonomers comprise an alkyl-substituted brominated aromatic ester (meth)acrylate monomer.
Claim 25
Dependent Claim
46 words
The optical product of claim 21, wherein the brominated aromatic (meth)acrylate comonomer comprises monomer of the general formula: wherein R can be hydrogen or methyl, R A can be a straight or branched alkyl, and x can be in the range from about 1 to 4.
Claim 26
Dependent Claim
28 words
The optical product of claim 15, wherein the polymerizable composition comprises from about 5 to 15 parts by weight methyl styrene monomer, based on 100 parts polymerizable composition.
Claim 27
Dependent Claim
26 words
The optical product of claim 14, comprising: from 5 to 40 parts by weight methyl styrene monomer; and from 60 to 95 parts by weight comonomer.
Claim 28
Dependent Claim
39 words
The optical product of claim 14, comprising: from 5 to 25 parts by weight methyl styrene monomer; from 10 to 15 parts by weight non-halogenated (meth)acrylate monomer; and from 65 to 80 parts by weight brominated aromatic (meth)acrylate monomer.
Claim 29
Dependent Claim
15 words
The optical product of claim 14, comprising a film derived from the methyl styrene monomer.
Claim 30
Dependent Claim
25 words
The optical product of claim 14, comprising a base; and an optical layer prepared from a polymerizable composition, the polymerizable composition comprising methyl styrene monomer.
Claim 31
Dependent Claim
47 words
The optical product of claim 27, wherein the base is prepared from materials selected from the group consisting of: cellulose acetate butyrate, cellulose acetate propionate, polyether sulfone, polymethyl methacrylate, polyurethane, polyester, polyvinyl chloride, syndiotactic polystyrene, polyethlene naphthalate, copolymers or blends based on naphthalene dicarboxylic acids, and glass.
Claim 32
Dependent Claim
12 words
The optical product of claim 28, wherein the base comprises a polarizer.
Claim 33
Dependent Claim
17 words
The optical product of claim 14, comprising a brightness enhancement film derived from the methyl styrene monomer.
Claim 34
Dependent Claim
13 words
A backlit flat panel display comprising the brightness enhancement film of claim 30.
Claim 35
Dependent Claim
13 words
A computer or television comprising the backlit flat panel display of claim 31.
Claim 36
Dependent Claim
16 words
A microstructure-bearing article comprising an optical layer derived from a polymerizable composition comprising methyl styrene monomer.
Claim 37
Dependent Claim
16 words
A microstructure-bearing article comprising an optical layer derived from a polymerizable composition comprising methyl styrene monomer.
References Cited (Backward Citations)
US3845102A
Cited
GB2089523A
Cited
US4542449A
Cited
US4578445A
Cited
US4721377A
Cited
US4812032A
Cited
US4803140A
Cited
JPS61286347A
Cited
JPS6230174A
Cited
EP0267460A1
Cited
EP0267459A1
Cited
JPS6450689A
Cited
US4970135A
Cited
US5175030A
Cited
US5183597A
Cited
JPH0323404A
Cited
US5486949A
Cited
JPH03153715A
Cited
US5183870A
Cited
DE4010783A1
Cited
JPH04285654A
Cited
US5552907A
Cited
US5394255A
Cited
US5424339A
Cited
JPH0686408A
Cited
JPH06123856A
Cited
US5331073A
Cited
US5359021A
Cited
US5592332A
Cited
US5598280A
Cited
US5591527A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-08-22 | 2004-02-21 | 2004-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-08-22 | 2008-02-21 | 2008-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-08-22 | 2012-02-21 | 2012-08-22 | $7700.00 | Window Closed / Lapsed |