Patent US4101492A successfully refreshed from Google Patents.
US4101492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous emulsion copolymers containing lower alkyl hydrogen polysiloxane
Assignee: Ingredion Inc
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Filing: 1977-03-03
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Granted: 1978-07-18
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Expires: 1997-03-03
Abstract
Abstract Aqueous emulsions adapted for application to textile fabrics and which provide improved water and soil resistance are supplied using aqueous emulsion copolymers of nonreactive monoethylenically unsaturated monomers providing a T g below about 20° C. with from 0.5% to 20% of reactive monoethylenically unsaturated monomer providing active hydrogen, preferably OH and most preferably the ##STR1## AND FROM 1 TO 40% OF A TERMINAL-BLOCKED LOWER ALKYL HYDROGEN POLYSILOXANE HAVING A VISCOSITY OF FROM 20 TO 1000 CP at 20° C. In preferred practice, from 0.5 to 4% of the polysiloxane is used, and at least 50% of the copolymer is vinyl acetate.
Inventors
- 👤 Martin K. Lindemann
- 👤 Donald M. Wacome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:57
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/12
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
99 words
An aqueous emulsion comprising water having emulsified therein particles of copolymer produced by copolymerization in aqueous emulsion of nonreactive polymerizable monoethylenically unsaturated monomers providing a Tg below about 20° C. with from 0.5% to 20% of reactive monoethylenically unsaturated monomer providing active hydrogen and from 1 to 40% of a terminal-blocked lower alkyl hydrogen polysiloxane having a viscosity in the range from 20 to 1,000 cP at 20 C., the ratio of alkyl groups to Si-H groups in said siloxane being in the range of from 13:1 to about 1:1, the terminal groups not being included in said ratio.
Claim 2
Dependent Claim
99 words
An aqueous emulsion comprising water having emulsified therein particles of copolymer produced by copolymerization in aqueous emulsion of nonreactive polymerizable monoethylenically unsaturated monomers providing a Tg below about 20° C. with from 0.5% to 20% of reactive monoethylenically unsaturated monomer providing active hydrogen and from 1 to 40% of a terminal-blocked lower alkyl hydrogen polysiloxane having a viscosity in the range from 20 to 1,000 cP at 20 C., the ratio of alkyl groups to Si-H groups in said siloxane being in the range of from 13:1 to about 1:1, the terminal groups not being included in said ratio.
Claim 3
Dependent Claim
19 words
An aqueous emulsion as recited in claim 1 in which said copolymer includes at least 15% of vinyl acetate.
Claim 4
Dependent Claim
43 words
An aqueous emulsion as recited in claim 1 in which said lower alkyl hydrogen polysiloxane contains methyl groups in a ratio of from 5:1 to about 1:1 and has a viscosity in the range of from 20 to 350 cP at 20° C.
Claim 5
Dependent Claim
26 words
An aqueous emulsion as recited in claim 1 in which said lower alkyl hydrogen polysiloxane is present in an amount of from 0.5% to about 4%.
Claim 6
Dependent Claim
17 words
An aqueous emulsion as recited in claim 1 in which said reactive monomer supplies the OH group.
Claim 7
Dependent Claim
57 words
An aqueous emulsion as recited in claim 5 in which said reactive monomer provides the ##STR4## group where X is hydrogen or CH 2 OZ and Z is hydrogen or the residue of an etherifying monoalcohol containing from 1 to 8 carbon atoms, said named reactive monmer being present in an amount of from 1% to 10%.
Claim 8
Dependent Claim
16 words
An aqueous emulsion as recited in claim 6 in which said reactive monomer is N-methylol acrylamide.
Claim 9
Dependent Claim
17 words
An aqueous emulsion as recited in claim 6 in which said reactive monomer is N-methylol allyl carbamate.
Claim 10
Dependent Claim
17 words
An aqueous emulsion as recited in claim 1 in which said reactive momomer comprises hydroxy ethyl acrylate.
Claim 11
Dependent Claim
28 words
An aqueous emulsion as recited in claim 1 in which said reactive monmer comprises a monoethylenically unsaturated acid in an amount up to about 2% of the copolymer.
Claim 12
Dependent Claim
18 words
An aqueous emulsion as recited in claim 1 in which said copolymer has a Tg below 0° C.
Claim 13
Dependent Claim
19 words
An aqueous emulsion as recited in claim 11 in which said copolymer comprises at least 50% of vinyl acetate.
Claim 14
Dependent Claim
15 words
An aqueous emulsion as recited in claim 12 in which said copolymer further includes ethylene.
Claim 15
Dependent Claim
18 words
An aqueous emulsion as recited in claim 1 in which said emulsion further includes a heat-hardening glyoxal-formaldehyde condensate.
Claim 16
Dependent Claim
17 words
An aqueous emulsion as recited in claim 1 in which said emulsion includes a Lewis acid catalyst.
Claim 17
Dependent Claim
16 words
An aqueous emulsion as recited in claim 15 in which said catalyst comprises dibutyl tin dilaurate.
Claim 18
Dependent Claim
134 words
An aqueous emulsion comprising water having emulsified therein particles of copolymer produced by copolymerization in aqueous emulsion of nonreactive polymerizable monoethylenically unsaturated monomers providing a T g below 0° C. and selected from vinyl acetate, acrylate and methacrylate esters, styrene, vinyl toluene and acrylonitrile, with from 0.5% to 20% of reactive monoethylenically unsaturated monomer providing 1% to 10% of monomer selected from N-methylol acrylamide, N-methylol allyl carbamate and ethers thereof with monoalcohols containing up to 8 carbon atoms, and from 1% to 4% of a terminal-blocked methyl hydrogen polysiloxane having a viscosity in the range of from 20 to 350 cP at 20° C., the ratio of methyl groups to Si-H groups in said siloxane being in the range of from 5:1 to about 1:1, the terminal groups not being included in said ratio.
Claim 19
Dependent Claim
134 words
An aqueous emulsion comprising water having emulsified therein particles of copolymer produced by copolymerization in aqueous emulsion of nonreactive polymerizable monoethylenically unsaturated monomers providing a T g below 0° C. and selected from vinyl acetate, acrylate and methacrylate esters, styrene, vinyl toluene and acrylonitrile, with from 0.5% to 20% of reactive monoethylenically unsaturated monomer providing 1% to 10% of monomer selected from N-methylol acrylamide, N-methylol allyl carbamate and ethers thereof with monoalcohols containing up to 8 carbon atoms, and from 1% to 4% of a terminal-blocked methyl hydrogen polysiloxane having a viscosity in the range of from 20 to 350 cP at 20° C., the ratio of methyl groups to Si-H groups in said siloxane being in the range of from 5:1 to about 1:1, the terminal groups not being included in said ratio.
Claim 20
Dependent Claim
21 words
An aqueous emulsion as recited in claim 17 in which at least 50% of the copolymer is constituted by vinyl acetate.
Claim 21
Dependent Claim
21 words
An aqueous emulsion as recited in claim 17 in which the ratio of methyl group to Si-H groups is about 1:1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-17 | 1982-01-16 | 1982-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-17 | 1986-01-16 | 1986-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-17 | 1990-01-16 | 1990-07-18 | $7700.00 | Window Closed / Lapsed |