EP0345748A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Hard transparent resins and process for the production thereof
Assignee: Mitsui Chemicals Inc
•
Filing: 1989-06-07
•
Granted: —
•
Expires: 2009-06-07
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): 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): CH 2 CR-COO- (II) wherein R is selected from the group consisting of hydrogen and methyl group, and a functional group of the formula (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 CH 2 CH=COO-, CH 2 = C(CH 3 )-COO-, and 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
EP
Data Source
google_patents
Last Synchronized
2026-11-05 22:12
CPC Classifications
C; C08; C08F; C08F228/00; C08F20/00; C08F20/02; C08F20/10; C08F20/34; C08F20/36; C08F12/00; C08F12/02; C08F12/04; C08F12/06; C08F12/12; C08F12/14; C08F12/26; G; G02; G02B; G02B1/00; G02B1/04
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
78 words
A process for preparing a hard transparent resin comprising polymerizing a monomer (A) having a first functional group of the formula (I): wherein X is selected from the group consisting of an oxygen atom and a sulfur ato and a second functional group selected from the group consisting of: a functional group of the formula (II): wherein R is selected from the group consisting of hydrogen and a methyl group, and a functional group of the formula (III):
Claim 2
Dependent Claim
78 words
A process for preparing a hard transparent resin comprising polymerizing a monomer (A) having a first functional group of the formula (I): wherein X is selected from the group consisting of an oxygen atom and a sulfur ato and a second functional group selected from the group consisting of: a functional group of the formula (II): wherein R is selected from the group consisting of hydrogen and a methyl group, and a functional group of the formula (III):
Claim 3
Dependent Claim
49 words
The process of claim 1 wherein said monomer (A) is prepared by reacting an isopropenyl-a,a-dimethylbenzyl isocyanate with a compound containing at least one group selected from the group consisting of a hydroxyl group and a mercapto group and at least one functional group selected from the group consisting of:
Claim 4
Dependent Claim
11 words
The hard transparent resin prepared by the process of claim 1.
Claim 5
Dependent Claim
47 words
A hard transparent resin having at least one structural unit selected from the group consisting of: wherein X is selected from the group consisting of an oxygen atom and a sulfur atom, and wherein R is selected from the group consisting of hydrogen and a methyl group.
Claim 6
Dependent Claim
47 words
A hard transparent resin having at least one structural unit selected from the group consisting of: wherein X is selected from the group consisting of an oxygen atom and a sulfur atom, and wherein R is selected from the group consisting of hydrogen and a methyl group.
Claim 7
Dependent Claim
94 words
A process for preparing a hard transparent resin, comprising copolymerizing a monomer (A) having a first functional group of the formula (I): 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): wherein R is selected from the group consisting of hydrogen and a methyl group, and a functional group of the formula (III): with a monomer (B) having at least one functional group selected from the group consisting of:
Claim 8
Dependent Claim
94 words
A process for preparing a hard transparent resin, comprising copolymerizing a monomer (A) having a first functional group of the formula (I): 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): wherein R is selected from the group consisting of hydrogen and a methyl group, and a functional group of the formula (III): with a monomer (B) having at least one functional group selected from the group consisting of:
Claim 9
Dependent Claim
49 words
The process of claim 5 wherein said monomer (A) is prepared by reacting an isopropenyl-a,a-dimethylbenzyl isocyanate with a compound containing at least one group selected from the group consisting of a hydroxyl group and a mercapto group and at least one functional group selected from the group consisting of:
Claim 10
Dependent Claim
11 words
The hard transparent resin prepared by the process of claim 5.
Claim 11
Dependent Claim
12 words
A glazing material prepared from the hard transparent resin of claim 3.
Claim 12
Dependent Claim
12 words
An optical lens prepared from the hard transparent resin of claim 3.
Claim 13
Dependent Claim
12 words
A glazing material prepared from the hard transparent resin of claim 7.
Claim 14
Dependent Claim
12 words
An optical lens prepared from the hard transparent resin of claim 7.
Claim 15
Dependent Claim
45 words
The process of claim 1 wherein the monomer (A) is selected from the group consisting of N-(3-isopropenyl-a,a-dimethylbenz 1)-2-acryloyloxyethyl carbamate, N-(3-isopropenyt-α,α-dimethylbenzyl)-2-methacryloyloxyethyl carbamate, N-(4-isopropenyl-α,α-dimethylbenzyl)-2-acryloyloxyethyl carbamate, N-(4-isopropenyl-α,α-dimethylbenzyl)-2-methacryloyloxyethyl carbamate, N-(3-isopropenyl-α,α-dimethylbenzyi)-1-acryloyloxypropan-2-yi carbamate, N-(3-isopropenyl-α,α-dimethylbenzyl)-1-methacryloyloxypropan-2-yl carbamate, N-(4-isopropenyl-α,α-dimethylbenzyl)-1-acryloyloxypropan-2-yl carbamate, N-(3-isopropenyl-a,a-dimethylbenzyl)-1,3-diacryloyloxypropan-2- yl carbamate, N-(3-isopropenyl-a,a-dimethylbenzyl)-1,3-dimethacryloyloxypropan-2-yl carbamate, N-(3-isopropenyl-α,α-dimethylbenzyl)-1-acryloyloxy-3-methacryloyloxypropan-2-yl carbamate, N-(4-isopropenyl-α,α-dimethylbenzyl)-1,3-diacryloyloxypropan-2-yl carbamate, N-(3-isopropenyl-α,α-dimethylbenzyl)-2,2-diacryloyloxymethyl-3-acryloyloxypropyl carbamate, and N-(4-isopropenyl-α,α-dimethylbenzyl)-2-dimethacryloyloxymethyl-3-methacryloyloxypropyl carbamate.
Claim 16
Dependent Claim
45 words
The process of claim 5 wherein the monomer (A) is selected from the group consisting of N-(3-isopropenyl-α,α-dimethylbenzyl)-2-acryfoyloxyethyl carbamate, N-(3-isopropenyl-α,α-dimethylbenzyl)-2-methacryloyloxyethyl carbamate, N-(4-isopropenyl-a,a-dimethylbenzyl)-2-acryloyloxyethyI carbamate, N-(4-isopropenyl-a,a-dimethylbenzyl)-2-methacryloyloxyethyl carbamate, N-(3-isopropenyl-α,α-dimethylbenzyl-1-acryloyloxypropan-2-yl carbamate, N-(3-isopropenyl-a,a-dimethylbenzyl)-1-methacryloyloxypropan-2-yl carbamate, N-(4-isopropenyl-α,α-dimethylbenzyl)-1-acryloyloxypropan-2-yl carbamate, N-(3-isopropenyl-a,a-dimethylbenzyl)-1,3-diacryloyloxypropan-2-yl carbamate, N-(3-isopropenyl-a,a-dimethylbenzyl)-1,3-dimethacryloyloxypropan-2-yl carbamate, N-(3-isopropenyl-α,α-dimethylbenzyl)-l -acryloyloxy-3-methacryloyloxypropan-2-yl carbamate, N-(4-isopropenyl-α,α-dimethylbenzyl-1,3-diacryloyloxypropan-2-yl carbamate, N-(3-isopropenyl-α,α- dimethylbenzyl)-2,2-diacryloyloxymethyl-3-acryloyloxypropyl carbamate. and N-(4-isopropenyl-α,α-dimethylbenzyl)-2-dimethacryloyloxymethyl-3-methacryloyloxypropyl carbamate.
Claim 17
Dependent Claim
11 words
The hard transparent resin prepared by the process of claim 12.
Claim 18
Dependent Claim
11 words
The hard transparent resin prepared by the process of claim 13.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.