Patent US4333971A successfully refreshed from Google Patents.
US4333971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substrate treating compositions
Assignee: Solutia Inc
•
Filing: 1981-06-05
•
Granted: 1982-06-08
•
Expires: 2001-06-05
Abstract
Abstract The properties of a fibrous substrate are improved by application of a composition comprising a hydrophilic air-curing polymer and a compound comprising at least two free radical polymerizable unsaturated groups. The composition can optionally contain in addition a latex of a thermoplastic polymer.
Inventors
- 👤 Donald N. Van Eenam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:43
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/18; D21H17/19; C; C08; C08F; C08F290/00; C08F290/08; C08F290/12; C08F299/00; C08F299/02; C08F299/026
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
144 words
A process for improving the physical properties of a fibrous substrate which comprises applying thereto a composition of matter comprising: A. a polyether-ene having the formula ##STR12## where Q is a moiety terminating in the residue of an active hydrogen-containing group selected from the group consisting of alcoholic hydroxyl, thiol, amide, carboxylic acid and secondary amine with an active hydrogen removed, E is a moiety containing a radical having an activated olefinic unsaturation, either α,β or β,γ to the activating group, n is the number of adjacent segments having this formula, and n and m are integers and are each at least 1, provided that where one is less than 4 the other is at least 4; and B. a non-air-curing compound having a structure comprising at least two free-radical polymerizable unsaturated groups; and allowing the composition to thermoset cure irreversibly on the substrate.
Claim 2
Dependent Claim
144 words
A process for improving the physical properties of a fibrous substrate which comprises applying thereto a composition of matter comprising: A. a polyether-ene having the formula ##STR12## where Q is a moiety terminating in the residue of an active hydrogen-containing group selected from the group consisting of alcoholic hydroxyl, thiol, amide, carboxylic acid and secondary amine with an active hydrogen removed, E is a moiety containing a radical having an activated olefinic unsaturation, either α,β or β,γ to the activating group, n is the number of adjacent segments having this formula, and n and m are integers and are each at least 1, provided that where one is less than 4 the other is at least 4; and B. a non-air-curing compound having a structure comprising at least two free-radical polymerizable unsaturated groups; and allowing the composition to thermoset cure irreversibly on the substrate.
Claim 3
Dependent Claim
34 words
A process according to claim 1 in which the component A is the reaction product of hydroxyl-containing compound with at least 4 molecules of allyl glycidyl ether per hydroxyl group in the hydroxyl-containing compound.
Claim 4
Dependent Claim
36 words
A process according to claim 1 in which Component B is a compound that comprises at least two groups having the formula ##STR13## wherein R 3 is hydrogen or a C 1 -C 2 alkyl group.
Claim 5
Dependent Claim
36 words
A process according to claim 1 in which Component B is a compound that comprises at least two groups having the formula ##STR14## wherein R 3 is hydrogen or a C 1 -C 2 alkyl group.
Claim 6
Dependent Claim
39 words
A process according to claim 1 in which the composition also comprises a free-radical polymerizable mono-olefinic monomer miscible with components A and B and capable of undergoing a thermoset cure or irreversible cross-linking reaction in concert with Component A.
Claim 7
Dependent Claim
32 words
A process according to claim 1 in which the mixture of Components A and B is an aqueous solution or emulsion and the composition further comprises a latex of a thermoplastic polymer.
Claim 8
Dependent Claim
19 words
A process according to any one of claims 1 to 6 in which the composition comprises a polyhydroxy compound.
Claim 9
Dependent Claim
32 words
A process according to any one of claims 1 to 6 in which the composition is applied at a level of from 5 to 500 kg per metric ton of the substrate.
Claim 10
Dependent Claim
97 words
A process for improving the wet and dry strength of a cellulosic substrate which comprises applying thereto from 10 to 300 kg per metric ton of substrate of a composition comprising: A. from 2 to 98 parts by weight of the reaction product of one mole of ethylene glycol with at least eight moles of allyl glycidyl ether; and B. from 98 to 2 parts by weight of a thermosetting compound having at least two groups with the formula ##STR15## wherein R 3 is hydrogen, methyl or ethyl and R 4 is --COO-- or --CH 2 --.
Claim 11
Dependent Claim
97 words
A process for improving the wet and dry strength of a cellulosic substrate which comprises applying thereto from 10 to 300 kg per metric ton of substrate of a composition comprising: A. from 2 to 98 parts by weight of the reaction product of one mole of ethylene glycol with at least eight moles of allyl glycidyl ether; and B. from 98 to 2 parts by weight of a thermosetting compound having at least two groups with the formula ##STR15## wherein R 3 is hydrogen, methyl or ethyl and R 4 is --COO-- or --CH 2 --.
Claim 12
Dependent Claim
38 words
A process according to claim 9 in which the composition also comprises a free-radical polymerizable monoolefinic monomer miscible with Components A and B and capable of undergoing a thermoset cure or irreversible cross-linking in concert with Component A.
Claim 13
Dependent Claim
33 words
A process according to claim 9 in which Components A and B, present as aqueous emulsions are mixed with a latex of a thermoplastic polymer having a glass transition temperature below 40° C.
Claim 14
Dependent Claim
27 words
A process according to claim 11 in which the thermoplastic polymer latex is selected from the group consisting of polyvinyl acetate, ethylene/vinyl acetate copolymers and acrylate polymers.
Claim 15
Dependent Claim
35 words
A process according to claim 11 in which the thermoplastic polymer is added to such an amount that it provides from 10 to 60% of the weight of the composition based on total solids weight.
Claim 16
Dependent Claim
39 words
A process according to any one of claims 9 to 13 in which up to 20% by weight, based on the total actives weight in the composition, of glycerol is added to the composition before application to the substrate.
References Cited (Backward Citations)
US4064304A
Cited
US4049634A
Cited
US4145248A
Cited
US4289808A
Cited
US4291101A
Cited
US4296227A
Cited
US4289864A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-07 | 1985-12-07 | 1986-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-07 | 1989-12-07 | 1990-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-07 | 1993-12-07 | 1994-06-08 | $7700.00 | Window Closed / Lapsed |