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US5300352A Expired / Lapsed US ⏱️ 0.0 years remaining

Laminate

Assignee: Mitsui Chemicals Inc
•
Filing: 1992-06-11
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Granted: 1994-04-05
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Expires: 2012-06-11
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Abstract

Abstract The laminate of the invention comprises a substrate and a resin surface layer having a glossiness of not less than 60% when measured at an incidence angle of 60 degrees laminated on at least one side surface of the substrate, and the substrate is formed from at least one cycloolefin polymer (A) selected from the group consisting of a random copolymer (a-1) of specific cycloolefin and ethylene, a ring opening polymer (a-2) of specific cycloolefin, a ring opening copolymer (a-3) of specific cycloolefin and a hydrogenation product (a-4) of the ring opening polymer or the ring opening copolymer, or formed from a cycloolefin resin composition (B) comprising the cycloolefin polymer (A) and crystalline polyolefin and/or an (alpha)-olefin elastomeric copolymer. The substrate shows excellent resistance to flon gas, so that the resin surface layer is effectively prevented from occurrence of cracks caused by influence of flon gas.

Inventors

  • 👤 Shiro Honma

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 09:19
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B1/00; B32B27/065; B32B27/30; B32B27/302; B32B27/304; B32B27/32; B32B27/325; B32B27/36; B32B27/365; B32B5/00; B32B5/18; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/31504; Y10T428/31507; Y10T428/31725; Y10T428/3175; Y10T428/31757; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31924

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 298 words
A laminate comprising a substrate having a surface and a resin surface layer having a glossiness of not less than 60% when measured at an incidence angle of 60° which is laminated on said surface of the substrate, wherein the substrate consists of a cycloolefin resin composition (B) containing at least one cycloolefin copolymer (A) selected from the group consisting of a random copolymer (a-1) of ethylene and a cycloolefin represented by the following formula (I), a ring opening polymer (a-2) of a cycloolefin represented by the following formula (I), a ring opening copolymer (a-3) of cycloolefins represented by the following formula (I), a hydrogenation product (a-4) of the ring opening polymer (a-2) or the ring opening copolymer (a-3), an unsaturated carboxylic acid graft-modified product (a-5) of the above (a-1), (a-2), (a-3) or (a-4), and a crosslinked produce (a-6) of the above (a-5), and a crystalline polyolefin having a crystallinity of more than 50% ##STR25## wherein n is 0 or 1; m is 0 or a positive integer; q is 0 or 1; R 1 to R 18 , R a and R b independently represent a hydrogen atom, a halogen atom or a hydrocarbon group; R 15 to R 18 may be bonded together to form a monocyclic group or a polycyclic group which may have double bond(s); and R 15 and R 16 , or R 17 and R 18 may form an alkylidene group; and the resin surface layer is formed from at least one resin selected from the group consisting of a polystyrene, an acrylonitrile/butadiene/sytrene copolymer, a polycarbonate, a polyalkylene terephthalate, a polyvinyl chloride, the cycloolefin polymer (A), a polyamide, and a cycloolefin resin composition (C) containing the cycloolefin polymer (A) and an α-olefin elastomeric copolymer having a crystallinity of not more than 25%.
Claim 2
Dependent Claim 298 words
A laminate comprising a substrate having a surface and a resin surface layer having a glossiness of not less than 60% when measured at an incidence angle of 60° which is laminated on said surface of the substrate, wherein the substrate consists of a cycloolefin resin composition (B) containing at least one cycloolefin copolymer (A) selected from the group consisting of a random copolymer (a-1) of ethylene and a cycloolefin represented by the following formula (I), a ring opening polymer (a-2) of a cycloolefin represented by the following formula (I), a ring opening copolymer (a-3) of cycloolefins represented by the following formula (I), a hydrogenation product (a-4) of the ring opening polymer (a-2) or the ring opening copolymer (a-3), an unsaturated carboxylic acid graft-modified product (a-5) of the above (a-1), (a-2), (a-3) or (a-4), and a crosslinked produce (a-6) of the above (a-5), and a crystalline polyolefin having a crystallinity of more than 50% ##STR25## wherein n is 0 or 1; m is 0 or a positive integer; q is 0 or 1; R 1 to R 18 , R a and R b independently represent a hydrogen atom, a halogen atom or a hydrocarbon group; R 15 to R 18 may be bonded together to form a monocyclic group or a polycyclic group which may have double bond(s); and R 15 and R 16 , or R 17 and R 18 may form an alkylidene group; and the resin surface layer is formed from at least one resin selected from the group consisting of a polystyrene, an acrylonitrile/butadiene/sytrene copolymer, a polycarbonate, a polyalkylene terephthalate, a polyvinyl chloride, the cycloolefin polymer (A), a polyamide, and a cycloolefin resin composition (C) containing the cycloolefin polymer (A) and an α-olefin elastomeric copolymer having a crystallinity of not more than 25%.
Claim 3
Dependent Claim 30 words
The laminate as claimed in claim 1, wherein the cycloolefin resin composition (B) of the substrate further contains an α-olefin elastomeric copolymer having a crystallinity of not more than 25%.
Claim 4
Dependent Claim 18 words
The laminate as claimed in claim 1, wherein the crystalline polyolefin has a crystallinity of 55 to 85%.
Claim 5
Dependent Claim 370 words
A laminate comprising a substrate having a first surface and a second surface on opposite sides thereof, a resin surface layer having a glossiness of not less than 60% when measured at an incidence angle of 60° provided on said first surface of the substrate and a back surface layer provided on said second surface of the substrate, wherein the substrate consists of at least one cycloolefin copolymer (A) selected from the group consisting of a random copolymer (a-1) of ethylene and a cycloolefin represented by the following formula (I), a ring opening polymer (a-2) of a cycloolefin represented by the following formula (I), a ring opening copolymer (a-3) of cycloolefins represented by the following formula (I), a hydrogenation product (a-4) of the ring opening polymer (a-2) or the ring opening copolymer (a-3), an unsaturated carboxylic acid graft-modified product (a-5) of the above (a-1), (a-2), (a-3) or (a-4), and a crosslinked product (a-6) of the above (a-5), ##STR26## wherein n is 0 or 1; m is 0 or a positive integer; q is 0 or 1; R 1 to R 18 , R a and R b independently represent a hydrogen atom, a halogen atom or a hydrogen group; R 15 or R 18 may be bonded together to form a monocyclic group or a polycyclic group which may have double bond(s); and R 15 and R 16 , or R 17 and R 18 may form an alkylidene group, or the substrate consists of a cycloolefin resin composition (C) containing the cycloolefin polymer (A) and an α-olefin elastomeric copolymer having a crystallinity of not more than 25%; the resin surface layer is formed from at least one resin selected from a polystyrene, an acrylonitrile/butadiene/-styrene copolymer, a polycarbonate, a polyalkylene terephthalate, a polyvinyl chloride, the cycloolefin polymer (A), a polyamide, and a cycloolefin resin composition (C) containing the cycloolefin polymer (A) and an α-olefin elastomeric copolymer having a crystallinity of not more than 25%, said resin for forming the resin surface layer being different from the resin for forming the substrate; and the back surface layer is formed from a cycloolefin resin composition (B) containing the cycloolefin copolymer (A) and a crystalline polyolefin having a crystallinity of more than 50%.
Claim 6
Dependent Claim 370 words
A laminate comprising a substrate having a first surface and a second surface on opposite sides thereof, a resin surface layer having a glossiness of not less than 60% when measured at an incidence angle of 60° provided on said first surface of the substrate and a back surface layer provided on said second surface of the substrate, wherein the substrate consists of at least one cycloolefin copolymer (A) selected from the group consisting of a random copolymer (a-1) of ethylene and a cycloolefin represented by the following formula (I), a ring opening polymer (a-2) of a cycloolefin represented by the following formula (I), a ring opening copolymer (a-3) of cycloolefins represented by the following formula (I), a hydrogenation product (a-4) of the ring opening polymer (a-2) or the ring opening copolymer (a-3), an unsaturated carboxylic acid graft-modified product (a-5) of the above (a-1), (a-2), (a-3) or (a-4), and a crosslinked product (a-6) of the above (a-5), ##STR26## wherein n is 0 or 1; m is 0 or a positive integer; q is 0 or 1; R 1 to R 18 , R a and R b independently represent a hydrogen atom, a halogen atom or a hydrogen group; R 15 or R 18 may be bonded together to form a monocyclic group or a polycyclic group which may have double bond(s); and R 15 and R 16 , or R 17 and R 18 may form an alkylidene group, or the substrate consists of a cycloolefin resin composition (C) containing the cycloolefin polymer (A) and an α-olefin elastomeric copolymer having a crystallinity of not more than 25%; the resin surface layer is formed from at least one resin selected from a polystyrene, an acrylonitrile/butadiene/-styrene copolymer, a polycarbonate, a polyalkylene terephthalate, a polyvinyl chloride, the cycloolefin polymer (A), a polyamide, and a cycloolefin resin composition (C) containing the cycloolefin polymer (A) and an α-olefin elastomeric copolymer having a crystallinity of not more than 25%, said resin for forming the resin surface layer being different from the resin for forming the substrate; and the back surface layer is formed from a cycloolefin resin composition (B) containing the cycloolefin copolymer (A) and a crystalline polyolefin having a crystallinity of more than 50%.
Claim 7
Dependent Claim 16 words
The laminate as claimed in claim 4, wherein the substrate consists of the cycloolefin copolymer (A).
Claim 8
Dependent Claim 28 words
The laminate as claimed in claim 4, wherein the cycloolefin resin composition (C) of the substrate further contains a crystalline polyolefin having a crystallinity of more than 50%.
Claim 9
Dependent Claim 18 words
The laminate as claimed in claim 6, wherein the crystalline polyolefin has a crystallinity of 55 to 85%.
Claim 10
Dependent Claim 32 words
The laminate as claimed in claim 4, wherein the cycloolefin resin composition (B) of the back surface layer further contains an α-olefin elastomeric copolymer having a crystallinity of not more than 25%.
Claim 11
Dependent Claim 18 words
The laminate as claimed in claim 4, wherein the crystalline polyolefin has a crystallinity of 55 to 85%..

References Cited (Backward Citations)

GB1398329A Cited
EP0083495A1 Cited
DE3232209A1 Cited
US4614778A Cited
EP0203799A1 Cited
EP0306747A1 Cited
US4918133A Cited
EP0427567A2 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1997-04-04 1997-10-04 1998-04-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2001-04-04 2001-10-04 2002-04-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2005-04-04 2005-10-04 2006-04-05 $7700.00 Window Closed / Lapsed

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