Patent US4046945A successfully refreshed from Google Patents.
US4046945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the bonding of films and molded components
Assignee: Huels AG
•
Filing: 1975-01-13
•
Granted: 1977-09-06
•
Expires: 1995-01-13
Abstract
Abstract Films, sheets, molded components and parts of other shaped articles formed from a plastomer or elastomer are bonded together or to a substrate employing as an adhesive an adhesive composition heated to 50°-250° C. and consisting essentially of: A. 5-95% by weight of solid or semi-solid atactic poly-α-olefin or mixture of poly-α-olefins having a reduced specific viscosity of 0.05-5.0 dl./g.; B. 95-5% by weight of liquid atactic polyolefin or mixture of polyolefins having a viscosity of 150-1,000,000 cp./20° C.; and C. optionally, up to 50% by weight of filler.
Inventors
- 👤 Fritz Baxmann
- 👤 Albert Frese
- 👤 Hermann Roben
- 👤 Jurgen Wolpers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:43
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/02; B; B32; B32B; B32B25/00; B32B25/04; B32B25/14; B32B7/00; B32B7/04; B32B7/12; B32B2323/00; B32B2323/04; B32B2323/10; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/04; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31652; Y10T428/31667; Y10T428/31725; Y10T428/3175; Y10T428/31754; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902; Y10T428/31909; Y10T428/31913; Y10T428/31917; Y10T428/3192; Y10T428/31924; Y10T428/31928; Y10T428/31935; Y10T442/00; Y10T442/50; Y10T442/59
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
141 words
In a process for bonding unheated pieces of elastic polymers and thermoplastic polymers in film or shaped form to each other or to a suitable substrate selected from the group consisting of wool, wood, masonry, concrete, glass, metals, polyesters and roofing felt, the improvement which comprises employing as the bonding agent an adhesive composition heated at a temperature of up to 250° C. and consisting essentially of: a. 5-95% by weight of a solid or semi-solid atactic poly-α-olefin or poly-α-olefin mixture having a reduced specific viscosity of 0.05-5.0 dl./g.; b. 95-5% by weight of liquid atactic polybutene or polybutene mixture having a viscosity of 150-1,000,000 cp./20° C. which contains no readily boiling components that boil below 150° C. at 15 mm. Hg pressure; and c. up to 50% by weight of the adhesive composition of an inert, water insoluble inorganic filler.
Claim 2
Dependent Claim
141 words
In a process for bonding unheated pieces of elastic polymers and thermoplastic polymers in film or shaped form to each other or to a suitable substrate selected from the group consisting of wool, wood, masonry, concrete, glass, metals, polyesters and roofing felt, the improvement which comprises employing as the bonding agent an adhesive composition heated at a temperature of up to 250° C. and consisting essentially of: a. 5-95% by weight of a solid or semi-solid atactic poly-α-olefin or poly-α-olefin mixture having a reduced specific viscosity of 0.05-5.0 dl./g.; b. 95-5% by weight of liquid atactic polybutene or polybutene mixture having a viscosity of 150-1,000,000 cp./20° C. which contains no readily boiling components that boil below 150° C. at 15 mm. Hg pressure; and c. up to 50% by weight of the adhesive composition of an inert, water insoluble inorganic filler.
Claim 3
Dependent Claim
15 words
A process according to claim 1 wherein the adhesive composition contains chalk as a filler.
Claim 4
Dependent Claim
26 words
A process according to claim 1 wherein an adhesive composition containing 5-95% by weight of an atactic polypropylene at a temperature of 160°-250° C. is employed.
Claim 5
Dependent Claim
30 words
A process according to claim 1 wherein an adhesive composition at a temperature of 50°-250° C. and containing 5-95% by weight of a solid or semi-solid atactic polybutene-1 is employed.
Claim 6
Dependent Claim
30 words
A process according to claim 1 wherein the adhesive composition contains 5-95% by weight of a mixture of atactic polypropylene as component (a) and liquid atactic polybutene-1 as component (b).
Claim 7
Dependent Claim
56 words
A process according to claim 1 wherein the adhesive composition consists essentially of, as component (a) 30-70% by weight of an extensively atactic polypropylene, polybutene-1, copolymers thereof, terpolymers thereof with ethene, propene, 1-butene, 1-hexene, or a mixture thereof and, as component (b) 70-30% by weight of a polybutene oil having a viscosity of 150-1,000,000 cp./20° C.
Claim 8
Dependent Claim
17 words
A process according to claim 6 wherein the polybutene oil has a viscosity of 1,000-100,000 cp./20° C.
Claim 9
Dependent Claim
125 words
An article of manufacture comprising a section of elastomer film bonded to another section of elastomer film or to a substrate selected from the group consisting of wool, wood, masonry, concrete, glass, metals, polyesters and roofing felt by spreading onto an unheated section or substrate an adhesive composition consisting essentially of: a. 5-95% by weight of a solid or semi-solid atactic poly-α-olefin or poly-α-olefin mixture having a reduced specific viscosity of 0.05-5.0 dl./g.; b. 95-5% by weight of liquid atactic polybutene or polybutene mixture having a viscosity of 150-1,000,000 cp./20° C. which contains no readily boiling components that boil below 150° C. at 15 mm. Hg pressure; and c. up to 50% by weight of the adhesive composition of an inert, water insoluble inorganic filler.
Claim 10
Dependent Claim
125 words
An article of manufacture comprising a section of elastomer film bonded to another section of elastomer film or to a substrate selected from the group consisting of wool, wood, masonry, concrete, glass, metals, polyesters and roofing felt by spreading onto an unheated section or substrate an adhesive composition consisting essentially of: a. 5-95% by weight of a solid or semi-solid atactic poly-α-olefin or poly-α-olefin mixture having a reduced specific viscosity of 0.05-5.0 dl./g.; b. 95-5% by weight of liquid atactic polybutene or polybutene mixture having a viscosity of 150-1,000,000 cp./20° C. which contains no readily boiling components that boil below 150° C. at 15 mm. Hg pressure; and c. up to 50% by weight of the adhesive composition of an inert, water insoluble inorganic filler.
Claim 11
Dependent Claim
19 words
An article of manufacture according to claim 8 wherein a plurality of sections of an elastomer are bonded together.
Claim 12
Dependent Claim
18 words
An article of manufacture according to claim 9 wherein the elastomer is an ethylene-propylene or ethylene butene-1 rubber.
Claim 13
Dependent Claim
28 words
A process according to claim 1, wherein said polymer is an elastic polymer selected from the group consisting of ethylene-propylene, ethylene-butene-1, butadiene-styrene, butadiene-acrylonitrile, butyl rubber, polybutadiene and polyisoprene.
Claim 14
Dependent Claim
16 words
A process according to claim 11, wherein said elastic polymer is an ethylene-propylene or ethylene-butene-1 rubber.
Claim 15
Dependent Claim
25 words
A process according to claim 1, wherein said polymer is a thermoplastic polymer selected from the group consisting of polyethylene, polypropylene, polybutene-1, polystyrene and polyvinylchloride.
Claim 16
Dependent Claim
14 words
A process according to claim 13, wherein said thermoplastic polymer is polybutene-1 or polystyrene.
Claim 17
Dependent Claim
26 words
A process according to claim 13, wherein an elastic polymer selected from the group consisting of ethylene-propylene or ethylene-butene-1 rubbers is bonded to said thermoplastic polymer.
References Cited (Backward Citations)
US3367909A
Cited
US3444117A
Cited
US3660224A
Cited
US3634551A
Cited
US3705884A
Cited
US3900361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |