US4959125A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soft tissue paper containing noncationic surfactant
Assignee: Procter and Gamble Co
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Filing: 1988-12-05
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Granted: 1990-09-25
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Expires: 2008-12-05
Abstract
Abstract Tissue paper having an enhanced tactile sense of softness through incorporation of an effective amount of a noncationic surfactant is disclosed. Preferably, less than about 2.0% of the noncationic surfactant, on a dry fiber weight basis, is incorporated in the tissue paper: more preferably, only about 1.0% or less is so retained. Tissue paper embodiments of the present invention may further contain a quantity of a binder material, such as starch, for linting control, and to increase paper strength.
Inventors
- 👤 Wolfgang U. Spendel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:56
CPC Classifications
D; D21; D21H; D21H23/00; D21H23/02; D21H23/22; D21H23/50; D21H17/00; D21H17/20; D21H17/21; D21H17/24; D21H17/28
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
99 words
Tissue paper having a basis weight of from about 10 to about 65 grams per square meter, and density of about 0.6 grams or less per cubic centimeter, said paper comprising cellulosic fibers, an effective amount of an alkyl glycoside surfactant, said effective amount of alkyl glycoside surfactant being from about 0.01% to about 2.0% alkyl glycoside surfactant based on the dry fiber weight of said tissue paper, and an effective amount of a starch binder material, said effective amount of starch being from about 0.01% to about 2.0% based on the dry fiber weight of said tissue paper.
Claim 2
Dependent Claim
99 words
Tissue paper having a basis weight of from about 10 to about 65 grams per square meter, and density of about 0.6 grams or less per cubic centimeter, said paper comprising cellulosic fibers, an effective amount of an alkyl glycoside surfactant, said effective amount of alkyl glycoside surfactant being from about 0.01% to about 2.0% alkyl glycoside surfactant based on the dry fiber weight of said tissue paper, and an effective amount of a starch binder material, said effective amount of starch being from about 0.01% to about 2.0% based on the dry fiber weight of said tissue paper.
Claim 3
Dependent Claim
34 words
The tissue paper of claim 1 wherein said effective amount of alkyl glycoside surfactant is from about 0.05% to about 1.0% alkyl glycoside surfactant based on the dry fiber weight of said tissue paper.
Claim 4
Dependent Claim
21 words
The tissue paper of claim 1 wherein said alkyl glycoside surfactant has a melting point of at least about 50° C.
Claim 5
Dependent Claim
32 words
The tissue paper of claim 1, 2, or 3 wherein said effective amount of starch is from about 0.1% to about 1.0% based on the dry fiber weight of said tissue paper.
Claim 6
Dependent Claim
12 words
The tissue paper of claim 4 wherein said starch is amioco starch.
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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) | 1993-09-24 | 1994-03-26 | 1994-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-24 | 1998-03-26 | 1998-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-24 | 2002-03-26 | 2002-09-25 | $7700.00 | Window Closed / Lapsed |