EP0116871A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A process for preparing an aqueous adhesive composition
Assignee: Wacker Chemical Corp
•
Filing: 1984-01-24
•
Granted: —
•
Expires: 2004-01-24
Abstract
Abstract A process for preparing an aqueous adhesive composition which comprises preparing a solvent dispersion by mixing rubber, carbon black, vulcanizing agent, tackifying resin and accelerator with sufficient organic solvent to form a solvent dispersion and thereafter emulsifying the solvent dispersion in the presence of water to form an aqueous emuision. The aqueous emulsion may be used to bond unvulcanized rubber compounds, such as a tread stock to the carcass portion during the formation of a tire.
Inventors
- 👤 Wendell Collins
- 👤 Howard Brooks
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 03:14
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/12; C08J5/124; C08J5/127; C09; C09J; C09J121/00; C09J121/02; C08J2321/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
73 words
A process for preparing an aqueous adhesive composition which comprises mixing rubber selected from the class consisting of natural rubber, synthetic rubber and mixtures thereof, with a reinforcing agent,a vulcanizing agent, a tackifying resin, an accelerator and a sufficient amount of an organic solvent for the rubber to form a solvent dispersion and thereafter emlsi- fying the solvent dispersion in the presence of an emulsifying agent and water to form an aqueous emulsion.
Claim 2
Dependent Claim
73 words
A process for preparing an aqueous adhesive composition which comprises mixing rubber selected from the class consisting of natural rubber, synthetic rubber and mixtures thereof, with a reinforcing agent,a vulcanizing agent, a tackifying resin, an accelerator and a sufficient amount of an organic solvent for the rubber to form a solvent dispersion and thereafter emlsi- fying the solvent dispersion in the presence of an emulsifying agent and water to form an aqueous emulsion.
Claim 3
Dependent Claim
24 words
The process of claim 1, wherein the rubber, reinforcing agent, vulcanizing agent and accelerator are milled together prior to mixing with the organic solvent.
Claim 4
Dependent Claim
14 words
The process of claim 2, wherein a tackifying resin is milled into the rubber.
Claim 5
Dependent Claim
27 words
The process of claim 1, wherein the tackifying resin is dissolved in the solvent prior to the addition of the rubber, reinforcing agent, vulcanizing agent and accelerator.
Claim 6
Dependent Claim
25 words
The process of claim 1, wherein the amount of solvent is from 300 to 600 parts by weight per 100 parts by weight of rubber.
Claim 7
Dependent Claim
84 words
A process for preparing an aqueous adhesive composition which comprises milling rubber, a carbon black, vulcanizing agent and an accelerator at a temperature up to about 80°C to form a rubber compound, adding a tackifying resin and up to 600 parts by weight of an organic solvent per 100 parts by weight of rubber to the milled rubber compound to form a solvent dispersion and thereafter emulsifying the solvent dispersion in the presence of an emulsifying agent and water to form an aqueous emulsion.
Claim 8
Dependent Claim
84 words
A process for preparing an aqueous adhesive composition which comprises milling rubber, a carbon black, vulcanizing agent and an accelerator at a temperature up to about 80°C to form a rubber compound, adding a tackifying resin and up to 600 parts by weight of an organic solvent per 100 parts by weight of rubber to the milled rubber compound to form a solvent dispersion and thereafter emulsifying the solvent dispersion in the presence of an emulsifying agent and water to form an aqueous emulsion.
Claim 9
Dependent Claim
14 words
The process of claim 6, wherein the emulsifying agent is an anionic emulsifying agent.
Claim 10
Dependent Claim
9 words
The composition obtained from the process of claim 1.
Claim 11
Dependent Claim
100 words
A process for bonding unvulcanized rubber compounds which comprises coating at least one surface of the rubber compounds to be bonded together with an aqueous emulsion, drying the coated surface, contacting the coated surface of the rubber compounds and thereafter vulcanizing the rubber compounds, said aqueous emulsion is prepared by mixing rubber, a reinforcing agent, a vulcanizing agent, a tackifying resin and an accelerator with a sufficient amount of an organic solvent for the rubber to form a solvent dispersion and thereafter emulsifying the solvent dispersion in the presence of an emulsifying agent and water to form an aqueous emulsion.
Claim 12
Dependent Claim
100 words
A process for bonding unvulcanized rubber compounds which comprises coating at least one surface of the rubber compounds to be bonded together with an aqueous emulsion, drying the coated surface, contacting the coated surface of the rubber compounds and thereafter vulcanizing the rubber compounds, said aqueous emulsion is prepared by mixing rubber, a reinforcing agent, a vulcanizing agent, a tackifying resin and an accelerator with a sufficient amount of an organic solvent for the rubber to form a solvent dispersion and thereafter emulsifying the solvent dispersion in the presence of an emulsifying agent and water to form an aqueous emulsion.
Claim 13
Dependent Claim
103 words
A process for building a rubber tire which comprises coating a surface of tread stock with an aqueous composition, drying the coated surface, contacting the coated surface of the tread stock with a portion of a tire carcass and thereafter vulcanizing the tread stock and tire carcass, said aqueous emulsion is prepared by mixing rubber, a reinforcing agent, a vulcanizing agent, a tackifying resin and an accelerator with a sufficient amount of an organic solvent for the rubber to form a solvent dispersion and thereafter emulsifying the solvent dispersion in the presence of an emulsifying agent and water to form an aqueous emulsion.
Claim 14
Dependent Claim
103 words
A process for building a rubber tire which comprises coating a surface of tread stock with an aqueous composition, drying the coated surface, contacting the coated surface of the tread stock with a portion of a tire carcass and thereafter vulcanizing the tread stock and tire carcass, said aqueous emulsion is prepared by mixing rubber, a reinforcing agent, a vulcanizing agent, a tackifying resin and an accelerator with a sufficient amount of an organic solvent for the rubber to form a solvent dispersion and thereafter emulsifying the solvent dispersion in the presence of an emulsifying agent and water to form an aqueous emulsion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.