US4293458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic polymer composition materials for pretreating paper
Assignee: Henkel AG and Co KGaA
•
Filing: 1980-01-17
•
Granted: 1981-10-06
•
Expires: 2000-01-17
Abstract
Abstract This invention is directed to a composition for pretreating the back of wallpaper, which comprises a mixture of: (a) a fine-grained dispersion of film-forming, non-blocking thermoplastic polymer; (b) a paraffin dispersion; (c) natural or synthetic zeolite; (d) optionally, additional conventional additives; and (e) water.
Inventors
- 👤 Eberhard Gruenberger
- 👤 Roswitha Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:09
CPC Classifications
D; D21; D21H; D21H27/00; D21H27/18; D21H27/20; C; C09; C09J; C09J125/00; C09J125/02; C09J125/04; C09J125/08; C09J125/14; C09J7/00; C09J7/20; C09J7/201; C09J7/21; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/54; C08L91/00; C08L91/06; C09J2400/00; C09J2400/20; C09J2400/28; C09J2400/283; C09J2451/00; C09J2451/005; C09J2491/00; C09J2491/005; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
45 words
A composition for pretreating the back of paper to be glued to a surface, which comprises a mixture of: (a) a fine-grained dispersion of film-forming, non-blocking thermoplastic polymer; (b) a paraffin dispersion; (c) natural or synthetic zeolite; (d) optionally, additional conventional additives; and (e) water.
Claim 2
Dependent Claim
45 words
A composition for pretreating the back of paper to be glued to a surface, which comprises a mixture of: (a) a fine-grained dispersion of film-forming, non-blocking thermoplastic polymer; (b) a paraffin dispersion; (c) natural or synthetic zeolite; (d) optionally, additional conventional additives; and (e) water.
Claim 3
Dependent Claim
31 words
The composition of claim 1 wherein the zeolite (c) is present in an amount of from 1 to 25 parts by weight, based on the total solids content of the composition.
Claim 4
Dependent Claim
26 words
The composition of claim 1 which additionally contains from about 0.05 to 0.5 parts by weight of a partially saponified graft polymer of acrylonitrile on starch.
Claim 5
Dependent Claim
17 words
The composition of claim 1 wherein the thermoplastic polymer is a copolymer of styrene and butyl acrylate.
Claim 6
Dependent Claim
27 words
In a wallpaper to be applied to a surface, the improvement which comprises having the backside of the wallpaper treated with a pretreatment composition of claim 1.
Claim 7
Dependent Claim
160 words
The composition of claim 1 which comprises a mixture of: (a) from about 20 to 50 parts by weight of a dispersion containing from 30 to 60% by weight of the dispersion of a film-forming, non-blocking thermoplastic polymer; (b) from about 10 to 30 parts by weight of a paraffin dispersion comprised of from about 30 to 60% by weight of paraffin and having a melting point of from about 35° to 50° C.; (c) from about 2 to 20 parts by weight of the total solids content of the composition of natural or synthetic zeolite having a particle size of from about 3 to 10μ; (d) optionally, from about 0 to 25 parts by weight of the total solids content of the composition of additional conventional additives; and (e) from about 20 to 40 parts by weight of water and has a solids content of from 30 to 60% and a viscosity of from about 200 to 1,500 mPa's.
Claim 8
Dependent Claim
26 words
The composition of claim 6 which additionally contains from about 0.05 to 0.5 parts by weight of a partially saponified graft polymer of acrylonitrile on starch.
Claim 9
Dependent Claim
17 words
The composition of claim 6 wherein the thermoplastic polymer is a copolymer of styrene and butyl acrylate.
Claim 10
Dependent Claim
29 words
The composition of claims 6 or 7 which contains from about 0.5 to 5% by weight, based on the total solids content of the composition, of said component (d).
Claim 11
Dependent Claim
24 words
The composition of claim 9 wherein component (d) is a member selected from the group consisting of surface-active compounds, thixotropic substances, and mixtures thereof.
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) | 1984-10-05 | 1985-04-06 | 1985-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-05 | 1989-04-06 | 1989-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-05 | 1993-04-06 | 1993-10-06 | $7700.00 | Window Closed / Lapsed |