Patent US6586091B2 successfully refreshed from Google Patents.
US6586091B2
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US
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Molded laminate
Assignee: Mitsubishi Chemical Corp
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Filing: 2002-04-29
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Granted: 2003-07-01
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Expires: 2022-04-29
Abstract
Abstract The invention provides a molded laminate with excellent adhesive strength which comprises an adhesive polymer composition layer and a gas-barrier resin layer comprising a polyamide resin or an ethylene-vinyl alcohol copolymer, the adhesive polymer composition layer comprising a modified polyester type elastomer obtained by modifying a saturated polyester type thermoplastic elastomer having a polyalkylene ether glycol segment content of 58 to 73% by weight with an unsaturated carboxylic acid or a derivative thereof in the presence of a radical generator.
Inventors
- 👤 Michihiro Iijima
- 👤 Hideki Takahashi
- 👤 Masatoshi Oomori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:19
CPC Classifications
C; C09; C09J; C09J167/00; C09J167/02; C09J167/025; B; B32; B32B; B32B27/00; B32B27/30; B32B27/34; B32B27/36; B32B7/00; B32B7/04; B32B7/12; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2878; Y10T428/2891; Y10T428/31504; Y10T428/31507; Y10T428/31551; Y10T428/31565; Y10T428/31725; Y10T428/31736; Y10T428/31786; Y10T428/31797
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
73 words
A molded laminate, which comprises: a) an adhesive polymer composition layer; and b) a gas-barrier resin layer comprising a polyamide resin or an ethylene-vinyl alcohol copolymer; said adhesive polymer composition layer comprising a modified polyester elastomer obtained by modifying a saturated polyester thermoplastic elastomer having a polyalkylene ether glycol segment content of 58 to 73% by weight with an unsaturated carboxylic acid or a compound thereof in the presence of a radical generator.
Claim 2
Dependent Claim
73 words
A molded laminate, which comprises: a) an adhesive polymer composition layer; and b) a gas-barrier resin layer comprising a polyamide resin or an ethylene-vinyl alcohol copolymer; said adhesive polymer composition layer comprising a modified polyester elastomer obtained by modifying a saturated polyester thermoplastic elastomer having a polyalkylene ether glycol segment content of 58 to 73% by weight with an unsaturated carboxylic acid or a compound thereof in the presence of a radical generator.
Claim 3
Dependent Claim
33 words
The molded laminate of claim 1 , wherein said adhesive polymer composition has an MFR, measured at 230° C. under 2.16 kg load according to JIS K7210, of 40 to 300 (g/10 min).
Claim 4
Dependent Claim
17 words
The molded laminate of claim 2 , wherein said MFR is from 42 to 150 (g/10 min).
Claim 5
Dependent Claim
17 words
The molded laminate of claim 3 , wherein said MFR is from 45 to 100 (g/10 min).
Claim 6
Dependent Claim
53 words
The molded laminate of claim 1 , which further comprises a base resin layer comprising at least one of a polyester resin, a styrene resin, a polycarbonate resin, an acrylic resin, or a urethane resin, which base resin layer is laminated with said gas barrier resin layer by said adhesive polymer composition layer.
Claim 7
Dependent Claim
131 words
The molded laminate of claim 1 , wherein said modified polyester elastomer has an amount of modification of 0.01 to 15 as obtained by an infrared absorption spectrum method, said amount of modification being represented by: A 1786 /( Ast×r ) wherein: A 1786 is a peak intensity at 1786 cm −1 of a 20 μm thick film of the modified polyester elastomer; Ast is a peak intensity at a reference wave number of a 20 μm thick film of a standard sample, which is a saturated polyester elastomer having a polyalkyl ether glycol segment content of 65% by weight; and r is a quotient of the mole fraction of the polyester segment in the modified polyester elastomer divided by the mole fraction of the polyester segment in the standard sample.
Claim 8
Dependent Claim
34 words
The molded laminate of claim 1 , wherein the radical generator is present in an amount of 0.001 to 3 parts by weight per 100 parts by weight of the saturated polyester thermoplastic elastomer.
Claim 9
Dependent Claim
24 words
The molded laminate of claim 1 , wherein the adhesive polymer composition has a JIS D-hardness, according to JIS K6253, of 10 to 80.
Claim 10
Dependent Claim
16 words
The molded laminate of claim 8 , wherein the JIS D-hardness is from 15 to 70.
Claim 11
Dependent Claim
26 words
The molded laminate of claim 1 , wherein said polyalkylene ether glycol segment is from 60 to 70% by weight of said saturated polyester thermoplastic elastomer.
Claim 12
Dependent Claim
32 words
The molded laminate of claim 1 , wherein the polyalkylene ether glycol comprising the segment comprises units of polyethylene glycol, poly(1,2- and 1,3-propylene ether) glycol, poly(tetramethylene ether) glycol or poly(hexamethylene ether) glycol.
Claim 13
Dependent Claim
16 words
The molded laminate of claim 11 , wherein the polyalkylene ether glycol is poly(tetramethylene ether) glycol.
Claim 14
Dependent Claim
23 words
The molded laminate of claim 1 , wherein the polyalkylene ether glycol has a number average molecular weight of from 400 to 6,000.
Claim 15
Dependent Claim
18 words
The molded laminate of claim 3 , wherein the number average molecular weight is from 1,000 to 3,000.
Claim 16
Dependent Claim
21 words
The molded laminate of claim 1 , wherein the compound of the unsaturated carboxylic acid is an ester or anhydride thereof.
Claim 17
Dependent Claim
15 words
The molded laminate of claim 15 , wherein an unsaturated carboxylic acid anhydride is used.
Claim 18
Dependent Claim
22 words
The molded laminate of claim 1 , wherein the radical generator is an organic or inorganic peroxide, an azo compound or dicumyl.
Claim 19
Dependent Claim
32 words
The molded laminate of claim 1 , wherein said modified polyester elastomer is further obtained using a compound having a carbon-carbon multiple bond other than the unsaturated carboxylic acid or compound thereof.
Claim 20
Dependent Claim
32 words
A method of imparting flexibility, waterproofness or impact resistance to a molded article, which comprises laminating to adhesive polymer composition and gas-barrier resin layer of claim 1 , onto a molded article.
Claim 21
Dependent Claim
13 words
The method of claim 19 , which imparts flexibility to said molded article.
Claim 22
Dependent Claim
13 words
The method of claim 19 , which imparts waterproofing to said molded article.
Claim 23
Dependent Claim
14 words
The method of claim 19 , which imparts impact resistance to said molded article.
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