Patent US322003A successfully refreshed from Google Patents.
Patent US5166285A successfully refreshed from Google Patents.
US5166285A
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US
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Hard transparent resins and process for the production thereof
Assignee: Mitsui Chemicals Inc
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Filing: 1992-02-14
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Granted: 1992-11-24
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Expires: 2012-02-14
Abstract
Abstract The present invention relates to a process for preparing a hard transparent resin comprising polymerizing a monomer (A) having both a functional group of the following formula (I): <IMAGE> (I) wherein X is selected from the group consisting of an oxygen atom and a sulfur atom, and a functional group selected from the group consisting of a functional group of the formula (II): CH2CR-COO-(II) wherein R is selected from the group consisting of hydrogen and methyl group, and a functional group of the formula (III): <IMAGE> (III) The invention also provides a process for preparing a transparent resin comprising copolymerizing monomer (A) with a monomer (B) having at least one functional group selected from the group consisting of CH2CH=COO-, CH2=C(CH3)-COO-, and <IMAGE> This resin can be suitably used as a glazing material, and in the manufacture of optical lenses, optical information recording medium substrates, etc. It has a crosslinked structure, high surface hardness, and may be easily polymerized.
Inventors
- 👤 Katsuyoshi Sasagawa
- 👤 Yoshinobu Kanemura
- 👤 Masao Imai
- 👤 Toshiyuki Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:01
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/34; C08F20/36; C08F12/00; C08F12/02; C08F12/04; C08F12/14; C08F12/26; G; G02; G02B; G02B1/00; G02B1/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
84 words
A glazing material comprised of a hard transparent resin prepared by polymerizing a monomer (A) having a first functional group of the formula (I): ##STR128## where in X is selected from the group consisting of an oxygen atom and a sulfur atom, and a second functional group selected from the group consisting of: a functional group of the formula (II): ##STR129## wherein R is selected from the group consisting of hydrogen and a methyl group, and a functional group of the formula (III): ##STR130##
Claim 2
Dependent Claim
84 words
A glazing material comprised of a hard transparent resin prepared by polymerizing a monomer (A) having a first functional group of the formula (I): ##STR128## where in X is selected from the group consisting of an oxygen atom and a sulfur atom, and a second functional group selected from the group consisting of: a functional group of the formula (II): ##STR129## wherein R is selected from the group consisting of hydrogen and a methyl group, and a functional group of the formula (III): ##STR130##
Claim 3
Dependent Claim
90 words
A glazing material comprised of a hard transparent resin prepared copolymerizing a monomer (A) having a first functional group of the formula (I): ##STR131## wherein X is selected from the group consisting of an oxygen atom and a sulfur atom, and a second functional group of the formula (II): ##STR132## wherein R is selected from the group consisting of hydrogen and a methyl group, and a functional group of the formula (III): ##STR133## with a monomer (B) having at least one functional group selected from the group consisting of: ##STR134##
Claim 4
Dependent Claim
90 words
A glazing material comprised of a hard transparent resin prepared copolymerizing a monomer (A) having a first functional group of the formula (I): ##STR131## wherein X is selected from the group consisting of an oxygen atom and a sulfur atom, and a second functional group of the formula (II): ##STR132## wherein R is selected from the group consisting of hydrogen and a methyl group, and a functional group of the formula (III): ##STR133## with a monomer (B) having at least one functional group selected from the group consisting of: ##STR134##
Claim 5
Dependent Claim
83 words
An optical lens comprised of a hard transparent resin prepared by polymerizing a monomer (A) having a first functional group of the formula (I): ##STR135## wherein X is selected from the group consisting of an oxygen atom and a sulfur atom, and a second functional group selected from the group consisting of: a functional group of the formula (II): ##STR136## wherein R is selected from the group consisting of hydrogen and a methyl group and a functional group of the formula (III): ##STR137##
Claim 6
Dependent Claim
83 words
An optical lens comprised of a hard transparent resin prepared by polymerizing a monomer (A) having a first functional group of the formula (I): ##STR135## wherein X is selected from the group consisting of an oxygen atom and a sulfur atom, and a second functional group selected from the group consisting of: a functional group of the formula (II): ##STR136## wherein R is selected from the group consisting of hydrogen and a methyl group and a functional group of the formula (III): ##STR137##
Claim 7
Dependent Claim
90 words
An optical lens comprised of a hard transparent resin prepared copolymerizing a monomer (A) having a first functional group of the formula (I): ##STR138## wherein X is selected from the group consisting of an oxygen atom and a sulfur atom, and a second functional group of the formula (II): ##STR139## wherein R is selected from the group consisting of hydrogen and a methyl group and a functional group of the formula (III): ##STR140## with a monomer (B) having at least one functional group selected from the group consisting of: ##STR141##
Claim 8
Dependent Claim
90 words
An optical lens comprised of a hard transparent resin prepared copolymerizing a monomer (A) having a first functional group of the formula (I): ##STR138## wherein X is selected from the group consisting of an oxygen atom and a sulfur atom, and a second functional group of the formula (II): ##STR139## wherein R is selected from the group consisting of hydrogen and a methyl group and a functional group of the formula (III): ##STR140## with a monomer (B) having at least one functional group selected from the group consisting of: ##STR141##
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-11-24 | 1996-05-25 | 1996-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-24 | 2000-05-25 | 2000-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-24 | 2004-05-25 | 2004-11-24 | $7700.00 | Window Closed / Lapsed |