US4725492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite heat-insulating material
Assignee: Mitsubishi Chemical Corp
•
Filing: 1985-11-12
•
Granted: 1988-02-16
•
Expires: 2005-11-12
Abstract
Abstract A composite heat-insulating material having the structure such that a molded product of a carboxyl group-containing polyolefin-based resin or hydroxyl group-containing modified polyolefin-based resin and a urethane foam are laminated with an aqueous adhesive containing the following Components (A) and (B): (A) 20 to 80% by weight of a water-soluble polyimine compound selected from the group consisting of polyethyleneimine, poly(ethylene-urea) and an ethyleneimine adduct of polyaminepolyamide; and (B) 80 to 20% by weight of a cationic or amphoteric nitrogen atom-containing acrylic polymer.
Inventors
- 👤 Takao Yazaki
- 👤 Kazuhide Hattori
- 👤 Satoru Hattori
- 👤 Kazuhide Hayama
- 👤 Isao Itoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:36
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/065; B29; B29C; B29C67/00; B29C67/20; B32B27/32; B32B5/00; B32B5/18; B32B7/00; B32B7/04; B32B7/12; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0278; B32B2307/00; B32B2307/30; B32B2307/304; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249982; Y10T428/249985; Y10T428/249987; Y10T428/249991; Y10T428/249992; Y10T428/31504; Y10T428/31551; Y10T428/31562; Y10T428/31725; Y10T428/3175; Y10T428/31757
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
82 words
A composite heat-insulating material having the structure such that a molded product of a carboxyl group-containing polyolefin-based resin or hydroxyl group-containing modified polyolefin-based resin and a urethane foam are laminated with an aqueous adhesive containing the following Components (A) and (B): (A) 20 to 80% by weight of a water-soluble polyimine compound selected from the group consisting of polyethyleneimine, poly(ethylene-urea) and an ethyleneimine adduct of polyaminepolyamide; and (B) 80 to 20% by weight of a cationic or amphoteric nitrogen atom-containing acrylic polymer.
Claim 2
Dependent Claim
82 words
A composite heat-insulating material having the structure such that a molded product of a carboxyl group-containing polyolefin-based resin or hydroxyl group-containing modified polyolefin-based resin and a urethane foam are laminated with an aqueous adhesive containing the following Components (A) and (B): (A) 20 to 80% by weight of a water-soluble polyimine compound selected from the group consisting of polyethyleneimine, poly(ethylene-urea) and an ethyleneimine adduct of polyaminepolyamide; and (B) 80 to 20% by weight of a cationic or amphoteric nitrogen atom-containing acrylic polymer.
Claim 3
Dependent Claim
25 words
A composite heat-insulating material as in claim 1, wherein the carboxyl group-containing polyolefin-based resin is an ethylene/acrylic acid random copolymer or a maleic anhydride-grafted polypropylene.
Claim 4
Dependent Claim
40 words
A composite heat-insulating material as in claim 1, wherein the hydroxyl group-containing modified polyolefin-based resin is an α-olefin-based modified resin having 0.1 to 20 parts by weight of a hydroxyl group-containing monomer and MFR of 0.1 to 50 g/10 min.
Claim 5
Dependent Claim
16 words
A composite heat-insulating material as in claim 1, wherein the hydroxyl group-containing monomer is 2-hydroxypropyl methacrylate.
Claim 6
Dependent Claim
121 words
A composite heat-insulating material as in claim 1, wherein the Component (B) is an amphoteric compound obtained by modifying with an amphoterizing agent, a tertiary nitrogen atom of a polymer comprising: (a) 20 to 40% by weight of a monomer represented by the formula: ##STR5## (b) 60 to 80% by weight of a monomer represented by the formula: ##STR6## (c) 0 to 20% by weight of other hydrophobic vinyl monomer, wherein R 1 is H or CH 3 , R 2 and R 3 each is H or an alkyl group having 1 to 2 carbon atoms, R 5 is an alkyl group having 1 to 18 carbon atoms, and A is an alkylene group having 2 to 6 carbon atoms.
Claim 7
Dependent Claim
21 words
A composite heat-insulating material as in claim 1, wherein the amount of the carboxyl group is 1×10 -4 mol/g or more.
Claim 8
Dependent Claim
26 words
A composite heat-insulating material as in claim 1, wherein the amount of the hydroxyl group is at least 0.01 g per 100 g of the polyolefin.
Claim 9
Dependent Claim
25 words
A composite heat-insulating material as in claim 1, wherein the amount of the aqueous adhesive coated is from 0.01 to 1.0 g/m 2 (solids basis).
References Cited (Backward Citations)
US4500597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-02-15 | 1991-08-17 | 1992-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-15 | 1995-08-17 | 1996-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-15 | 1999-08-17 | 2000-02-16 | $7700.00 | Window Closed / Lapsed |