US4792477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminate of modified polycarbonate resin and modified polyolefin resin
Assignee: Mitsubishi Chemical Corp
•
Filing: 1987-10-15
•
Granted: 1988-12-20
•
Expires: 2007-10-15
Abstract
Abstract There is provided a thermoplastic resin laminate, comprising a modified aromatic polycarbonate type resin containing (a) functional groups selected from aliphatic hydroxyl groups, carboxyl groups and epoxy groups in a copolymerized form and a modified polyolefin type resin containing (b) functional groups selected from the above group of functional groups and being different from the above functional groups (a) in a copolymerized form, the contents of the functional groups (a) and (b) being each 5x10-5 to 5x10-1 mol/100 g.
Inventors
- 👤 Masahide Ochiumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:41
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/32; B32B27/36; B32B27/365; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/26; Y10T428/266; Y10T428/269; Y10T428/31504; Y10T428/31507
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
76 words
A thermoplastic resin laminate, comprising a modified aromatic polycarbonate resin containing (a) functional groups selected from aliphatic hydroxyl groups, carboxyl groups and epoxy groups in a copolymerized form and a modified polyolefin resin containing (b) functional groups selected from the above group of functional groups and being different from the above functional groups (a) in a copolymerized form, the contents of the functional groups (a) and (b) being each 5×10 -5 to 5×10 -1 mol/100 g.
Claim 2
Dependent Claim
76 words
A thermoplastic resin laminate, comprising a modified aromatic polycarbonate resin containing (a) functional groups selected from aliphatic hydroxyl groups, carboxyl groups and epoxy groups in a copolymerized form and a modified polyolefin resin containing (b) functional groups selected from the above group of functional groups and being different from the above functional groups (a) in a copolymerized form, the contents of the functional groups (a) and (b) being each 5×10 -5 to 5×10 -1 mol/100 g.
Claim 3
Dependent Claim
22 words
A thermoplastic resin laminate according to claim 1, wherein the modified polyolefin resin contains 5 to 60 wt. % of an elastomer.
Claim 4
Dependent Claim
39 words
A thermoplastic resin laminate according to claim 1, wherein the combination of the functional groups (a) and (b) is (i) carboxyl groups and the groups selected from epoxy groups and hydroxyl groups, or (ii) epoxy groups and hydroxyl groups.
Claim 5
Dependent Claim
31 words
A thermoplastic resin laminate according to claim 1, wherein the modified aromatic polycarbonate resin is a polycarbonate containing hydroxyl groups and the modified polyolefin resin is a polyolefin containing carboxyl groups.
Claim 6
Dependent Claim
31 words
A thermoplastic resin laminate according to claim 1, wherein the modified aromatic polycarbonate resin is a polycarbonate containing epoxy groups and the modified polyolefin resin is a polyolefin containing carboxyl groups.
Claim 7
Dependent Claim
36 words
A thermoplastic resin laminate according to claim 1, wherein the aromatic polycarbonate before modification with the functional groups (a) is a polycarbonate in which the divalent phenol for formation of the polycarbonate structure is bisphenol A.
Claim 8
Dependent Claim
36 words
A thermoplastic resin laminate according to claim 1, wherein the functional groups (a) are introduced by reacting a terminal capping agent having the functional groups (a) with the polycarbonate before modification with said functional groups (a).
Claim 9
Dependent Claim
24 words
A thermoplastic resin laminate according to claim 7, wherein the terminal capping agent is a phenol having a substituent comprising an alcoholic hydroxyl group.
Claim 10
Dependent Claim
28 words
A thermoplastic resin laminate according to claim 1, wherein the modified polyolefin resin is an olefinic resin having a carboxyl-containing ethylenically unsaturated monomer graft copolymerized onto said resin.
Claim 11
Dependent Claim
17 words
A thermoplastic resin laminate according to claim 9, wherein the carboxy-containing ethylenically unsaturated monomer is maleic anhydride.
Claim 12
Dependent Claim
36 words
A thermoplastic resin laminate according to claim 1, wherein the polyolefin resin before modification with the functional groups (b) is a crystalline polyolefin resin with a crystallinity of more than 20% or more by X-ray analysis.
Claim 13
Dependent Claim
31 words
A thermoplastic resin laminate according to claim 1, wherein said contents of the functional groups (a) and (b) are realized only with the modified polycarbonate resin and the modified polyolefin resin.
Claim 14
Dependent Claim
37 words
A thermoplastic resin laminate according to claim 1, wherein said contents of the functional groups (a) and (b) are realized by blending into the modified polycarbonate resin and the modified polyolefin resin a thermoplastic resin compatible therewith.
Claim 15
Dependent Claim
16 words
A thermoplastic resin laminate according to claim 13, wherein said thermoplastic resin is an aromatic polycarbonate.
Claim 16
Dependent Claim
29 words
A thermoplastic resin laminate according to claim 14, wherein the aromatic polycarbonate is of the same kind as the aromatic polycarbonate resin before modification with the functional groups (a).
Claim 17
Dependent Claim
31 words
A thermoplastic resin laminate according to claim 1, wherein the modified aromatic polycarbonate resin layer and the modified polyolefin resin layer each have a thickness of 10 -3 to 10 mm.
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) | 1991-12-20 | 1992-06-20 | 1992-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-20 | 1996-06-20 | 1996-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-20 | 2000-06-20 | 2000-12-20 | $7700.00 | Window Closed / Lapsed |