US3920600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive compositions
Assignee: EIDP Inc
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Filing: 1974-01-08
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Granted: 1975-11-18
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Expires: 1994-01-08
Abstract
Abstract A neoprene latex suitable for application in pressure-sensitive adhesive coatings, wherein the polymer is a copolymer of chloroprene with an Alpha , Beta -unsaturated carboxylic acid made in the presence of polyvinyl alcohol and a dialkyl xanthogen disulfide. An alkylated melamine-aldehyde resin, such as hexamethoxymethylmelamine, also is present in the composition, while other resins, for example, coumarone-indene resins or terpenes, can also be present. Antioxidants may be added to avoid deterioration of surfaces with which the compositions come in contact. A coating of the compositions of this invention on a surface has, after evaporation of water, pressure-sensitive adhesive properties of high and persistent tack.
Inventors
- 👤 Leo Ahramjian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:20
CPC Classifications
C; C09; C09J; C09J111/00; C09J111/02; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/14; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2874; Y10T428/2878; Y10T428/2887; Y10T428/2891
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
187 words
A COMPOSITION SUITABLE IN THE FORMULA OF PRESSURE-SEN SITIVE ADHESIVE COATINGS, SAID COMPOSITION COMPRISING: A. AN AQUEOUS DISPERSION OF A COPOLYMER MADE BY POLYMERIZING IN THE ABSENCE OF SURFACE ACTIVE AGENTS CONTAINING CARBOXYLATE GROUPS (1) AN AQUEOUS SUSPENSIONOF ABOUT 90.0-99.6 MOLE PERCENT OF AN A,B-UNSATURATED CARABOUT 0.4-10.0 MOLE PERCENT OF AN A,B-UNSATURATED CARBOXYLIC ACID MONOMER IN THE PRESENCE OF (2) ABOUT 3-10 PARTS OF POLYVINYL ALCOHOL AND 0.2-2 PARTS OF AN ORGANIC, SULFUR-CONTAINING CHAIN TRANSFER AGENT SELECTED FROM THE GROUP CONSISTING OF DIALKYL XANTHOGEN DISULFIDES AND ALKYL MERCAPTANS PER 100 PARTS OF POLYVINYL ALCOHOL AND 0.2-2 PARTS OF AN ORGANIC, SULFUR-CONTAINING OF DIALKYL ZANTHOGEN SELECTED FROM THE GROUP CONSISTING OF DIALKYL XANTHOGEN DISLUFIDES AND ALKYLMERCAPTANS PER 100 PARTS BY WEIGHT OF TOTAL MONOMERS (1); THE PROPORTION OF GEL IN THE COPOLYMER BEING ABOUT 10-95 PERCENT; AND B. AN ALKYLATED MELAMINE-ALDEHYDE RESIN IN THE PROPORTION OF 10-15 PARTS PER 100 PARTS BY WEIGHT OF THE COPOLYMER A(1), THE RESIN HAVING A SOFTENING POINT OF ABOUT -20* TO +70*C.; WITH THE PREVISO THAT A. THE A,B-UNSATURATED CARBOXYKLIC ACID COMONOMER OF PART A, ABOVE, IS REPRESENTED BY THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
187 words
A COMPOSITION SUITABLE IN THE FORMULA OF PRESSURE-SEN SITIVE ADHESIVE COATINGS, SAID COMPOSITION COMPRISING: A. AN AQUEOUS DISPERSION OF A COPOLYMER MADE BY POLYMERIZING IN THE ABSENCE OF SURFACE ACTIVE AGENTS CONTAINING CARBOXYLATE GROUPS (1) AN AQUEOUS SUSPENSIONOF ABOUT 90.0-99.6 MOLE PERCENT OF AN A,B-UNSATURATED CARABOUT 0.4-10.0 MOLE PERCENT OF AN A,B-UNSATURATED CARBOXYLIC ACID MONOMER IN THE PRESENCE OF (2) ABOUT 3-10 PARTS OF POLYVINYL ALCOHOL AND 0.2-2 PARTS OF AN ORGANIC, SULFUR-CONTAINING CHAIN TRANSFER AGENT SELECTED FROM THE GROUP CONSISTING OF DIALKYL XANTHOGEN DISULFIDES AND ALKYL MERCAPTANS PER 100 PARTS OF POLYVINYL ALCOHOL AND 0.2-2 PARTS OF AN ORGANIC, SULFUR-CONTAINING OF DIALKYL ZANTHOGEN SELECTED FROM THE GROUP CONSISTING OF DIALKYL XANTHOGEN DISLUFIDES AND ALKYLMERCAPTANS PER 100 PARTS BY WEIGHT OF TOTAL MONOMERS (1); THE PROPORTION OF GEL IN THE COPOLYMER BEING ABOUT 10-95 PERCENT; AND B. AN ALKYLATED MELAMINE-ALDEHYDE RESIN IN THE PROPORTION OF 10-15 PARTS PER 100 PARTS BY WEIGHT OF THE COPOLYMER A(1), THE RESIN HAVING A SOFTENING POINT OF ABOUT -20* TO +70*C.; WITH THE PREVISO THAT A. THE A,B-UNSATURATED CARBOXYKLIC ACID COMONOMER OF PART A, ABOVE, IS REPRESENTED BY THE FOLLOWING FORMULA:
Claim 3
Dependent Claim
44 words
A composition of claim 1 also containing at least one other adhesive resin selected from the class consisting of terpenes, terpene-phenolics, coumarone-indenes, phenolic-modified coumarone-indenes, rosin esters, pentaerythritol esters, and polydicyclobutadiene resins, in a total amount of about 3-10 parts per 100 parts of copolymer.
Claim 4
Dependent Claim
25 words
A composition of claim 1 also containing an amount of antioxidant effective to prevent deterioration of substrate surfaces with which the composition comes in contact.
Claim 5
Dependent Claim
15 words
A composition of claim 1 containing an amount of filler sufficient to confer desired pigmentation.
Claim 6
Dependent Claim
12 words
A composition of claim 1 wherein the alkylated melaMine-aldehyde resin is hexamethoxymethylmelamine.
Claim 7
Dependent Claim
19 words
A composition of claim 1 wherein the proportion of gel in the copolymer is about 40-60 percent by weight.
Claim 8
Dependent Claim
25 words
A composition of claim 1 wherein the Alpha , Beta -unsaturated acid comonomer incorporated into the copolymer is selected from acrylic, methacrylic, and itaconic acids.
Claim 9
Dependent Claim
46 words
A composition of claim 1 wherein the polyvinyl alcohol has an average degree of polymerization of about 350-2500, is a product of 80-99 percent hydrolysis of polyvinyl acetate, and is present at a concentration of about 4-6 parts per 100 parts by weight of total monomers.
Claim 10
Dependent Claim
20 words
A composition of claim 1 wherein the proportion of component B is 20-40 parts per 100 parts of copolymer A(1).
Claim 11
Dependent Claim
51 words
An article having on at least one of its surfaces a pressure-sensitive adhesive coating obtained by depositing on said surface a sufficient amount of a composition of claim 1 to confer pressure-sensitive adhesive properties upon that surface on removal of water, then allowing water to evaporate at ambient or elevated temperature.
Claim 12
Dependent Claim
51 words
An article having on at least one of its surfaces a pressure-sensitive adhesive coating obtained by depositing on said surface a sufficient amount of a composition of claim 2 to confer pressure-sensitive adhesive properties upon that surface on removal of water, then allowing water to evaporate at ambient or elevated temperature.
Claim 13
Dependent Claim
51 words
An article having on at least one of its surfaces a pressure-sensitive adhesive coating obtained by depositing on said surface a sufficient amount of a composition of claim 3 to confer pressure-sensitive adhesive properties upon that surface on removal of water, then allowing water to evaporate at ambient or elevated temperature.
Claim 14
Dependent Claim
51 words
An article having on at least one of its surfaces a pressure-sensitive adhesive coating obtained by depositing on said surface a sufficient amount of a composition of claim 4 to confer pressure-sensitive adhesive properties upon that surface on removal of water, then allowing water to evaporate at ambient or elevated temperature.
Claim 15
Dependent Claim
51 words
An article having on at least one of its surfaces a pressure-sensitive adhesive coating obtained by depositing on said surface a sufficient amount of a composition of claim 5 to confer pressure-sensitive adhesive properties upon that surface on removal of water, then allowing water to evaporate at ambient or elevated temperature.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |