Patent US4181769A successfully refreshed from Google Patents.
US4181769A
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Heteropolymer acrylic latices and textiles treated therewith
Assignee: Rohm and Haas Co
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Filing: 1977-09-29
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Granted: 1980-01-01
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Expires: 1997-09-29
Abstract
Abstract Low temperature properties of resin-treated textiles are improved by using as the resin an acrylic emulsion polymer wherein the latex particles have a core-shell structure. The monomers forming the core are selected to provide a T g in the core of -20° C. or lower and the monomer composition forming the shell is selected to provide a T g in the shell of about 60° C. to about -10° C. The core monomer composition contains a latent crosslinker together with an active crosslinker or a graftlinker, and the shell monomer composition contains a latent crosslinker.
Inventors
- 👤 Joseph E. Plamondon
- 👤 William R. Wilber
- 👤 Stephen Goth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:50
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/04; D06N3/042; C; C08; C08F; C08F265/00; C08F265/04; C08F265/06; C09; C09D; C09D151/00; C09D151/003; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/227; D06M15/233; D06M15/263; D06M15/285; D06M15/29; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249975; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2998; Y10T442/00; Y10T442/30; Y10T442/3325; Y10T442/3366; Y10T442/60; Y10T442/647; Y10T442/652
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
218 words
An article of manufacture comprising a textile material treated with a polymeric composition formed from acrylic latex particles, said latex particles comprising about 30-60% by weight of a polymeric core and about 70-40% by weight of a polymeric shell, wherein said core is formed by emulsion polymerization of a first monomer composition consisting essentially of: (a) a major amount of a principal monomer system, and (b) a minor amount of a crosslinking monomer system comprising: (i) about 0.5% to 6% by weight on the total monomer composition of a graftlinking monomer or an active crosslinking monomer, and (ii) about 4% to 10% by weight on the total monomer composition of a latent crosslinking monomer; and wherein said shell if formed on said core by emulsion polymerization of a second monomer composition in the presence of said core, said second monomer composition consisting essentially of: (a) a major amount of a principal monomer system; and (b) about 2% to 10% on the total second monomer composition of a latent crosslinking monomer; the monomers of said first monomer composition being selected to provide a T g in said core of -20° C. or lower, and the monomers of said second monomer composition being selected to provide a T g in said shell of about 60° C. to about -10° C.
Claim 2
Dependent Claim
218 words
An article of manufacture comprising a textile material treated with a polymeric composition formed from acrylic latex particles, said latex particles comprising about 30-60% by weight of a polymeric core and about 70-40% by weight of a polymeric shell, wherein said core is formed by emulsion polymerization of a first monomer composition consisting essentially of: (a) a major amount of a principal monomer system, and (b) a minor amount of a crosslinking monomer system comprising: (i) about 0.5% to 6% by weight on the total monomer composition of a graftlinking monomer or an active crosslinking monomer, and (ii) about 4% to 10% by weight on the total monomer composition of a latent crosslinking monomer; and wherein said shell if formed on said core by emulsion polymerization of a second monomer composition in the presence of said core, said second monomer composition consisting essentially of: (a) a major amount of a principal monomer system; and (b) about 2% to 10% on the total second monomer composition of a latent crosslinking monomer; the monomers of said first monomer composition being selected to provide a T g in said core of -20° C. or lower, and the monomers of said second monomer composition being selected to provide a T g in said shell of about 60° C. to about -10° C.
Claim 3
Dependent Claim
25 words
The article of claim 1 wherein said latent crosslinking monomer is acrylamide, methacrylamide, N-methylol acrylamide, N-methylol methacrylamide, or any mixture of two or more thereof.
Claim 4
Dependent Claim
23 words
The article of claim 1 wherein said graftlinking monomer is an allyl, methallyl or crotyl ester of an alpha, beta-ethylenically unsaturated carboxylic acid.
Claim 5
Dependent Claim
22 words
The article of claim 1 wherein said active crosslinking monomer is an alpha, beta-ethylenically unsaturated monocarboxylic acid ester of a polyhydric alcohol.
Claim 6
Dependent Claim
52 words
The article of claim 1 wherein said principal monomer systems comprise at least one C 1 -C 8 alkyl acrylate or a mixture comprising at least one C 1 -C 8 alkyl acrylate and up to 20% by weight of at least one different, ethylenically unsaturated monomer copolymerizable with said alkyl acrylate.
Claim 7
Dependent Claim
34 words
The article of claim 1 wherein the principal monomer system of the core comprises about 70-95% by weight of butyl acrylate and about 1-15% by weight of methyl methacrylate, based on total monomer weight.
Claim 8
Dependent Claim
118 words
The article of claim 1 wherein said first monomer composition consists essentially of: 70-95% by weight of a C 1 -C 8 alkyl acrylate, 0-15% by weight of a C 1 -C 8 alkyl methacrylate, 4-10% by weight of acrylamide or methacrylamide, 1-5% by weight of allyl methacrylate, and 0-2% by weight of itaconic acid; and wherein said second monomer composition consists essentially of: 4- 70% by weight of a C 1 -C 8 alkyl acrylate, 20-50% by weight of a C 1 -C 8 alkyl methacrylate, 2-10% by weight of N-methylol acrylamide, N-methylol methacrylamide, or a mixture of acrylamide and N-methylol acrylamide, or a mixture of methacrylamide and N-methylol methacrylamide, and 0-2% by weight of itaconic acid.
Claim 9
Dependent Claim
24 words
An article of manufacture comprising a sheet of release material having a dried film thereof of the latex acrylic set forth in claim 7.
Claim 10
Dependent Claim
15 words
The article of claim 8 wherein said sheet of release material is silicone-treated release paper.
Claim 11
Dependent Claim
26 words
An article as in claim 1 wherein said textile material is leather or a leather substitute and said polymeric composition is a direct or transfer coating.
Claim 12
Dependent Claim
19 words
An article as in claim 10 further including a crushed foam layer between said textile material and said coating.
Claim 13
Dependent Claim
27 words
An article as in claim 1 wherein said textile material is a woven, knitted or non-woven fabric and said polymeric composition is a direct or transfer coating.
Claim 14
Dependent Claim
18 words
An article as in claim 12 further including a crushed foam layer between said fabric and said coating.
Claim 15
Dependent Claim
26 words
A process which comprises treating a textile material with the acrylic latex set forth in claim 1, and drying and curing the latex on said material.
Claim 16
Dependent Claim
40 words
A process which comprises covering a textile material with a crushed foam prepared from a polymer emulsion, covering said crushed foam covered material with the acrylic latex set forth in claim 1, and drying and curing said acrylic latex thereon.
Claim 17
Dependent Claim
47 words
A process which comprises covering a textile material with a foamed polymer emulsion, drying said foamed emulsion short of curing, applying a dry film prepared from the acrylic latex set forth in claim 1, and laminating said foamed polymer emulsion and said film to said textile material.
Claim 18
Dependent Claim
28 words
A method of improving the low temperature properties of a resin-treated textile material, which comprises treating a textile material with the acrylic latex set forth in claim 1.
Claim 19
Dependent Claim
27 words
An article as in claim 1 further including a crushed foam layer between said textile material and said coating, and wherein said coating is a transfer coating.
Claim 20
Dependent Claim
24 words
An article of manufacture comprising a sheet of release material having a dried film thereon of the latex acrylic set forth in claim 1.
Claim 21
Dependent Claim
15 words
The article of claim 19 wherein said sheet of release material is silicon-treated release paper.
References Cited (Backward Citations)
US4107120A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-12-31 | 1983-07-02 | 1984-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-31 | 1987-07-02 | 1988-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-31 | 1991-07-02 | 1992-01-01 | $7700.00 | Window Closed / Lapsed |