US4603712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compounded polychloroprene formulation used as an adhesive layer in the manufacture of elastomeric articles
Assignee: Gates Corp
•
Filing: 1985-03-29
•
Granted: 1986-08-05
•
Expires: 2005-03-29
Abstract
Abstract An example of an elastomeric article embodying the invention is a composite, reinforced, vulcanized elastomeric hose, which includes a tube, an outer cover, a reinforcement layer, and a specially compounded interlayer interposed either between the tube and the reinforcement or the cover and the reinforcement. The inner tube (or in some applications, the cover) is composed of either a fluoroelastomer, fluoroplastic, polypropylene, polyvinylchloride, chlorinated polyethylene, or acrylonitrile polymer. The compounded polychloroprene interlayrer effects a strong bond to these materials. The tube and the cover are composed of materials not readily bondable to each other. The polychloroprene interlayer forms a strong bond to those layers it is in contact with when vulcanized.
Inventors
- 👤 Keith M. Krause
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:31
CPC Classifications
B; B32; B32B; B32B1/00; B32B1/08; B32B27/00; B32B27/06; B32B27/08; B32B27/12; B32B5/00; B32B5/02; B32B5/026; C; C08; C08L; C08L11/00; F; F16; F16L; F16L11/00; F16L11/04; F16L11/08; F16L11/085; B32B2260/00; B32B2260/02; B32B2260/021; B32B2260/04; B32B2260/046; B32B2597/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/31928
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
124 words
A unitary reinforced vulcanized elastomeric hose article for conveying fluids including an inner tube and outer cover, which are composed of dissimilar polymers not readily bondable to one another comprising: an inner tube made of a material selected from the group consisting of fluoroelastomers, fluoroplastics, polypropylene, polyvinylchloride, polyethylene, chlorinated polyethylene, and acrylonitrile polymers; an outer heat setting cover made of a material selected from the group consisting of fluoroelastomers, fluoroplastics, polypropylene, polyvinylchloride, polyethylene, chlorinated polyethylene, and acrylonitrile polymers but dissimilar from the material selected for said tube; an elastomeric tie gum layer of compounded polychloroprene formulation incorporating a multifunctional amine accelerator and a multifunctional carboxylic acid retarder bonded through vulcanization to said inner tube and cover; and a reinforcement layer embedded in the hose.
Claim 2
Dependent Claim
124 words
A unitary reinforced vulcanized elastomeric hose article for conveying fluids including an inner tube and outer cover, which are composed of dissimilar polymers not readily bondable to one another comprising: an inner tube made of a material selected from the group consisting of fluoroelastomers, fluoroplastics, polypropylene, polyvinylchloride, polyethylene, chlorinated polyethylene, and acrylonitrile polymers; an outer heat setting cover made of a material selected from the group consisting of fluoroelastomers, fluoroplastics, polypropylene, polyvinylchloride, polyethylene, chlorinated polyethylene, and acrylonitrile polymers but dissimilar from the material selected for said tube; an elastomeric tie gum layer of compounded polychloroprene formulation incorporating a multifunctional amine accelerator and a multifunctional carboxylic acid retarder bonded through vulcanization to said inner tube and cover; and a reinforcement layer embedded in the hose.
Claim 3
Dependent Claim
40 words
The hose of claim 1 wherein the formulation is comprised of the following portions in parts by weight: W type polychloroprene: 100; Multifunctional amine accelerator: 0.2-5; Multifunctional carboxylic acid retarder: 1-3; Antioxidant: 0-10; Plasticizer: 0-20; Fillers: 10-200; and Oil: 0-60.
Claim 4
Dependent Claim
12 words
The formulation of claim 2 wherein the multifunctional amine accelerator is dephenylguanidine.
Claim 5
Dependent Claim
12 words
The formulation of claim 2 wherein the multifunctional amine accelerator is diorthotolyguanidine.
Claim 6
Dependent Claim
23 words
The hose of claim 1 wherein the outer cover is made of a material selected from the group consisting of fluoroelastomers and fluoroplastics.
Claim 7
Dependent Claim
23 words
The hose of claim 1 wherein the inner tube is made of a material selected from the group consisting of fluorelastomers and fluoroplastics.
Claim 8
Dependent Claim
67 words
A unitary reinforced vulcanized elastomeric hose article for conveying fluids including an inner tube and outer cover, which are composed of dissimilar polymers not readily bondable to one another comprising: an inner fluorine-containing polymeric tube; an outer heat setting polymeric cover; an elastomeric tie gum layer of compounded polychloroprene formulation interposed between said inner tube and said outer cover; and a reinforcement layer embedded in the hose.
Claim 9
Dependent Claim
67 words
A unitary reinforced vulcanized elastomeric hose article for conveying fluids including an inner tube and outer cover, which are composed of dissimilar polymers not readily bondable to one another comprising: an inner fluorine-containing polymeric tube; an outer heat setting polymeric cover; an elastomeric tie gum layer of compounded polychloroprene formulation interposed between said inner tube and said outer cover; and a reinforcement layer embedded in the hose.
Claim 10
Dependent Claim
23 words
The hose of claim 7 wherein the cover material is selected from the group consisting of polypropylene, chlorinated polyethylene, acrylonitrile polymers, and polyvinylchloride.
Claim 11
Dependent Claim
26 words
The hose of claim 7 wherein the reinforcement consists of cord embedded in an elastomeric material, and is securely bonded to the elastomeric tie gum layer.
Claim 12
Dependent Claim
54 words
The hose of claim 7 wherein the reinforcement consists of at least one layer of woven fabric in any configuration in which there are interstices through which the polychloroprene formulation may securely bond to either the inner tube or the outer cover, depending on the placement of the reinforcement relative to the other layers.
Claim 13
Dependent Claim
15 words
The hose of claim 7 wherein the tube is composed of a fluoroelastomer or fluoroplastic.
Claim 14
Dependent Claim
69 words
A unitary reinforced vulcanized polymeric hose article for conveying fluids including an inner tube and outer cover, which are composed of dissimilar polymers not readily bondable to one another comprising: an inner heat setting polymeric tube; an outer fluorine-containing polymeric cover; a reinforcement material; and an elastomeric tie gum layer of compounded polychloroprene formulation skimmed about the reinforcement material and interposed between said inner tube and said outer cover.
Claim 15
Dependent Claim
69 words
A unitary reinforced vulcanized polymeric hose article for conveying fluids including an inner tube and outer cover, which are composed of dissimilar polymers not readily bondable to one another comprising: an inner heat setting polymeric tube; an outer fluorine-containing polymeric cover; a reinforcement material; and an elastomeric tie gum layer of compounded polychloroprene formulation skimmed about the reinforcement material and interposed between said inner tube and said outer cover.
Claim 16
Dependent Claim
15 words
The hose of claim 12 wherein the cover is composed of a fluoroelastomer or fluoroplastic.
Claim 17
Dependent Claim
24 words
The hose of claim 12 wherein the tube material is selected from the group consisting of polypropylene, chlorinated polyethylene, acrylonitrile polymers, and polyvinyl chloride.
Claim 18
Dependent Claim
71 words
A unitary reinforced vulcanized polymeric hose article for conveying fluids including an inner tube and reinforcement layer, which are composed of dissimilar polymers not readily bondable to one another comprising: an inner heat setting fluorine-containing polymeric tube; an outer heat setting polymeric cover; a reinforcement layer; and an elastomeric tie gum layer of compounded polychloroprene formulation wrapped about said inner tube and interposed between said inner tube and said reinforcement layer.
Claim 19
Dependent Claim
71 words
A unitary reinforced vulcanized polymeric hose article for conveying fluids including an inner tube and reinforcement layer, which are composed of dissimilar polymers not readily bondable to one another comprising: an inner heat setting fluorine-containing polymeric tube; an outer heat setting polymeric cover; a reinforcement layer; and an elastomeric tie gum layer of compounded polychloroprene formulation wrapped about said inner tube and interposed between said inner tube and said reinforcement layer.
Claim 20
Dependent Claim
15 words
The hose of claim 15 wherein the tube is composed of a fluoroelastomer or fluoroplastic.
Claim 21
Dependent Claim
26 words
The hose of claim 15 wherein the reinforcement consists of tire cord fabric embedded in an elastomeric material and wrapped about the elastomeric tie gum layer.
Claim 22
Dependent Claim
23 words
The hose of claim 15 wherein the cover material is selected from the group consisting of polypropylene, chlorinated polyethylene, acrylonitrile polymers, and polyvinylchloride.
Claim 23
Dependent Claim
48 words
An article of manufacture comprising a first layer including a compounded, W-type polychloroprene formulation incorporating a multifunctional amine accelerator and a multifunctional carboxylic acid retarder bonded through vulcanization to a second layer selected from the group consisting of fluoroelastomers, fluoroplastics, polypropylene, polyvinylchloride, polyethylene, chlorinated polyethylene, and acrylonitrile polymers.
Claim 24
Dependent Claim
48 words
An article of manufacture comprising a first layer including a compounded, W-type polychloroprene formulation incorporating a multifunctional amine accelerator and a multifunctional carboxylic acid retarder bonded through vulcanization to a second layer selected from the group consisting of fluoroelastomers, fluoroplastics, polypropylene, polyvinylchloride, polyethylene, chlorinated polyethylene, and acrylonitrile polymers.
Claim 25
Dependent Claim
12 words
The formulation of claim 19 wherein the multifunctional amine accelerator is diorthotolyguanidine.
Claim 26
Dependent Claim
12 words
The formulation of claim 19 wherein the multifunctional amine accelerator is diphenylguanidine.
Claim 27
Dependent Claim
40 words
The formulation of claim 19 wherein the formulation is comprised of the following proportions in parts by weight: W type polychloroprene: 100; Multifunctional amine accelerator: 0.2-5; Multifunctional carboxylic acid retarder: 1-3; Antioxidant: 0-10; Plasticizer: 0-20; Fillers: 10-200; and Oil: 0-60.
Claim 28
Dependent Claim
47 words
An article of manufacture comprising a first layer including a compounded, W-type polychloroprene formulation incorporating a multifunctional amine accelerator and an aminosilane accelerator bonded through vulcanization to a second layer selected from the group consisting of fluoroelastomers, fluoroplastics, polypropylene, polyvinyl chloride, polyethylene, chlorinated polyethylene, and acrylonitrile polymers.
Claim 29
Dependent Claim
47 words
An article of manufacture comprising a first layer including a compounded, W-type polychloroprene formulation incorporating a multifunctional amine accelerator and an aminosilane accelerator bonded through vulcanization to a second layer selected from the group consisting of fluoroelastomers, fluoroplastics, polypropylene, polyvinyl chloride, polyethylene, chlorinated polyethylene, and acrylonitrile polymers.
Claim 30
Dependent Claim
12 words
The formulation of claim 23 wherein the multifunctional amine accelerator is diorthotolyguanidine.
Claim 31
Dependent Claim
12 words
The formulation of claim 23 wherein the multifunctionial amine accelerator is diphenylguanidine.
Claim 32
Dependent Claim
38 words
The formulation of claim 23 wherein the formulation is comprised of the following proportions in parts by weight: W type polychloroprene: 100; Multifunctional amine accelerator: 0.2-1; Amino-silane accelerator: 1-3; Antioxidant: 0-10; Plasticizer: 0-20; Fillers: 10-200; and Oil: 0-60.
References Cited (Backward Citations)
US3561493A
Cited
US3599677A
Cited
US3651176A
Cited
US3682201A
Cited
US3988188A
Cited
US3927695A
Cited
US4003416A
Cited
US4007070A
Cited
US4091843A
Cited
US4096888A
Cited
US4330017A
Cited
US4209042A
Cited
US4256858A
Cited
US4361608A
Cited
US4457799A
Cited
US4394205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-04 | 1990-02-03 | 1990-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-04 | 1994-02-03 | 1994-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-04 | 1998-02-03 | 1998-08-05 | $7700.00 | Window Closed / Lapsed |