US4058647A
Expired / Lapsed
US
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Process for preparing laminated resin product
Assignee: Mitsubishi Chemical Corp
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Filing: 1976-02-25
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Granted: 1977-11-15
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Expires: 1996-02-25
Abstract
Abstract In a process for preparing a laminated resin product by melt-laminating (1) a modified polyolefin composition with (2) a polyester, a polyamide or a hydrolyzed copolymer of ethylenevinylacetate, the improvement comprising using as the modified polyolefin a modified polyolefin composition which comprises a mixture of 60 - 97 wt.% of a polyolefin which polyolefin comprises from 0.1 to 100 wt.% of a polyolefin modified with an unsaturated acid or anhydride content is from 0.01 to 10 wt.% of the total polyolefin content and wherein an unmodified polyolefin comprises from 99.9 to 0 wt.% of the total polyolefin content with 40 - 3 wt.% of a rubber component having 40 - 140 of Mooney viscosity 50 ML1 + 4 (100 DEG C) and the product so produced.
Inventors
- 👤 Takayuki Inoue
- 👤 Tetsuji Kakizaki
- 👤 Masahide Ochiumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:31
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/32; B32B27/30; B32B27/306; B32B27/36; B32B2307/00; B32B2307/70; B32B2307/724; B32B2307/7242; B32B2307/726; B32B2307/7265; B32B2439/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31739; Y10T428/31743; Y10T428/31746; Y10T428/31786; Y10T428/31797; Y10T428/31826; Y10T428/31855; Y10T428/31909; Y10T428/31928; Y10T428/31931; Y10T428/31935
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
140 words
In a process for preparing a laminated resin product by melt-laminating (1) a modified polyolefin composition with (2) a polyester, a polyamide or a hydrolyzed copolymer of ethylene-vinylacetate, the improvement comprising: laminating a layer of said polyester, polyamide or hydrolyzed copolymer or ethylene-vinyl-acetate with a layer of said modified polyolefin composition comprising a mixture of 60 -97 wt.% of a polyolefin which comprises from 0.1 to 100 wt.% of a polyolefin modified with an unsaturated carboxylic acid or anhydride thereof such that the unsaturated acid or anhydride content is from 0.01 to 10 wt.% of the total polyolefin content and wherein an unmodified polyolefin comprises from 99.9 to 0 wt.% of the total polyolefin content with 40 - 3 wt.% of a rubbery component having a Mooney viscosity (50 MH 1 + 4 (100° C) ) of 40 - 140.
Claim 2
Dependent Claim
140 words
In a process for preparing a laminated resin product by melt-laminating (1) a modified polyolefin composition with (2) a polyester, a polyamide or a hydrolyzed copolymer of ethylene-vinylacetate, the improvement comprising: laminating a layer of said polyester, polyamide or hydrolyzed copolymer or ethylene-vinyl-acetate with a layer of said modified polyolefin composition comprising a mixture of 60 -97 wt.% of a polyolefin which comprises from 0.1 to 100 wt.% of a polyolefin modified with an unsaturated carboxylic acid or anhydride thereof such that the unsaturated acid or anhydride content is from 0.01 to 10 wt.% of the total polyolefin content and wherein an unmodified polyolefin comprises from 99.9 to 0 wt.% of the total polyolefin content with 40 - 3 wt.% of a rubbery component having a Mooney viscosity (50 MH 1 + 4 (100° C) ) of 40 - 140.
Claim 3
Dependent Claim
69 words
The process for preparing a laminated resin product of claim 1, wherein 2 - 30 wt.% of said polyolefin is substituted with a soft resin of a low density polyethylene having a melt index of 0.2 to 30 and a specific gravity of 0.915 to 0.925 or a copolymer of ethylene-vinylacetate having a melt index of 0.5 to 20 and a vinylacetate component content of less than 40 wt.%.
Claim 4
Dependent Claim
35 words
The process for preparing a laminated resin product of claim 1, wherein 0.1 to 5 wt. parts of a polyamide or a thermoplastic polyester is added to 100 wt. parts of the modified polyolefin composition.
Claim 5
Dependent Claim
17 words
The process of claim 1, wherein the rubber component is a ethylene-propylene rubber or an ethylene-propylene terpolymer.
Claim 6
Dependent Claim
22 words
The process of claim 1, wherein the rubber component is an ethylene-propylene terpolymer having as the third component either ethylidenenorbornene or cyclopentadiene.
Claim 7
Dependent Claim
126 words
A laminated resin product, which comprises: (1) a gas-barrier polymer layer of a polyester, a polyamide or a hydrolyzed copolymer of ethylene-vinylacetate and (2) a modified polyolefin composition layer laminated thereon, wherein said modified polyolefin composition is a mixture of 60 - 97 wt.% of a polyolefin which polyolefin comprises 0.1 to 100 wt.% of a polyolefin modified with an unsaturated carboxylic acid or anhydride thereof such that the unsaturated acid or anhydride content is from 0.01 ot 10 wt.% of the total polyolefin content and wherein an unmodified polyolefin comprises from 99.9 to 0 wt.% of the total polyolefin content with 40 - 3 wt.% of a rubber component having a Mooney viscosity (50 ML 1 + 4 (100° C) ) of 40 - 150.
Claim 8
Dependent Claim
126 words
A laminated resin product, which comprises: (1) a gas-barrier polymer layer of a polyester, a polyamide or a hydrolyzed copolymer of ethylene-vinylacetate and (2) a modified polyolefin composition layer laminated thereon, wherein said modified polyolefin composition is a mixture of 60 - 97 wt.% of a polyolefin which polyolefin comprises 0.1 to 100 wt.% of a polyolefin modified with an unsaturated carboxylic acid or anhydride thereof such that the unsaturated acid or anhydride content is from 0.01 ot 10 wt.% of the total polyolefin content and wherein an unmodified polyolefin comprises from 99.9 to 0 wt.% of the total polyolefin content with 40 - 3 wt.% of a rubber component having a Mooney viscosity (50 ML 1 + 4 (100° C) ) of 40 - 150.
Claim 9
Dependent Claim
133 words
A laminated resin product, which comprises: (1) a gas-barrier polymer layer of a polyester, a polyamide or a hydrolyzed copolymer of ethylene-vinylacetate and (2) a modified polyolefin composition layer as a middle layer and (3) a polyolefin layer, wherein said modified polyolefin composition is a mixture of 60 - 97 wt.% of a polyolefin which polyolefin comprises from 0.1 to 100 wt.% of a polyolefin modified with an unsaturated carboxylic acid or anhydride thereof such that the unsaturated acid or anhydride content is from 0.01 to 10 wt.% of the total polyolefin content and wherein an unmodified polyolefin comprises from 99.9 to 0 wt.% of the total polyolefin content with 40 - 3 wt.% of a rubber component having a Mooney viscosity (50 ML 1 + 4 (100°) ) of 40 - 150.
Claim 10
Dependent Claim
133 words
A laminated resin product, which comprises: (1) a gas-barrier polymer layer of a polyester, a polyamide or a hydrolyzed copolymer of ethylene-vinylacetate and (2) a modified polyolefin composition layer as a middle layer and (3) a polyolefin layer, wherein said modified polyolefin composition is a mixture of 60 - 97 wt.% of a polyolefin which polyolefin comprises from 0.1 to 100 wt.% of a polyolefin modified with an unsaturated carboxylic acid or anhydride thereof such that the unsaturated acid or anhydride content is from 0.01 to 10 wt.% of the total polyolefin content and wherein an unmodified polyolefin comprises from 99.9 to 0 wt.% of the total polyolefin content with 40 - 3 wt.% of a rubber component having a Mooney viscosity (50 ML 1 + 4 (100°) ) of 40 - 150.
Claim 11
Dependent Claim
150 words
A laminated resin product, which comprises: (1) a gas-barrier polymer layer of a polyester, a polyamide or a hydrolyzed copolymer of ethylene-vinyl acetate and (2) modified polyolefin composition layers which are laminated on both surfaces of said gas-barrier polymer layer and (3) polyolefin layers which are laminated on each of said modified polyolefin composition layers, wherein said modified polyolefin composition is a mixture of 60 - 97 wt.% of a polyolefin which polyolefin comprises from 0.01 to 100 wt.% of a polyolefin modified with an unsaturated carboxylic acid or anhydride thereof such that the unsaturated acid or anhydride content is from 0.01 to 10 wt.% of the total polyolefin content and wherein an unmodified polyolefin comprises from 99.9 to 0 wt.% of the total polyolefin content with 40 - 3 wt.% of a rubber component having a Mooney viscosity (50 ML 1 + 4 (100°0 C) of 40 - 150.
Claim 12
Dependent Claim
150 words
A laminated resin product, which comprises: (1) a gas-barrier polymer layer of a polyester, a polyamide or a hydrolyzed copolymer of ethylene-vinyl acetate and (2) modified polyolefin composition layers which are laminated on both surfaces of said gas-barrier polymer layer and (3) polyolefin layers which are laminated on each of said modified polyolefin composition layers, wherein said modified polyolefin composition is a mixture of 60 - 97 wt.% of a polyolefin which polyolefin comprises from 0.01 to 100 wt.% of a polyolefin modified with an unsaturated carboxylic acid or anhydride thereof such that the unsaturated acid or anhydride content is from 0.01 to 10 wt.% of the total polyolefin content and wherein an unmodified polyolefin comprises from 99.9 to 0 wt.% of the total polyolefin content with 40 - 3 wt.% of a rubber component having a Mooney viscosity (50 ML 1 + 4 (100°0 C) of 40 - 150.
Claim 13
Dependent Claim
63 words
The laminated resin product of claim 6, wherein 2-30 wt.% of said polyolefin is substituted with a soft resin of a low density polyethylene having a melt index of 0.2 to 30 and a specific gravity of 0.915 to 0.925 or a copolymer of ethylene-vinylacetate having a melt index of 0.5 to 20 and a vinylacetate component content of less than 40 wt.%.
Claim 14
Dependent Claim
31 words
The laminated resin product of claim 6, wherein 0.1 to 5 wt. parts of a polyamide or a thermoplastic polyester is added to 100 wt. parts of the modified polyolefin composition.
Claim 15
Dependent Claim
19 words
The laminated resin product of claim 6, wherein the rubber component is an ethylene-propylene rubber or an ethylene-propylene terpolymer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-14 | 1981-05-16 | 1981-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-14 | 1985-05-16 | 1985-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-14 | 1989-05-16 | 1989-11-15 | $7700.00 | Window Closed / Lapsed |