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Patent US3619253A successfully refreshed from Google Patents.
US3619253A
Expired / Lapsed
US
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Color control for suedelike polymeric sheet materials
Assignee: EIDP Inc
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Filing: 1968-12-30
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Granted: 1971-11-09
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Expires: 1988-12-30
Abstract
Abstract A new method for improving the color reproducibility of batch quantities of synthetic suedelike sheet materials is provided by this invention. Batch quantities of newly prepared sheet material, are color corrected to substantially match specific color standards by adjusting the solids content of a fluorochemical and polyorganosiloxane repellency solution between 0.5 and 10 percent solids prior to applying the repellency solution to the sheet material.
Inventors
- 👤 Charles L Hoffmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:52
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/0056; D06N3/0065; D06N3/0059
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
171 words
a compound represented by the formula where M is hydrogen, alkali metal, ammonium or substituted ammonium; y is a number of average value from 0.1 to 2.5; m is a number 4 through 12; n is a number 1 through 16; with Cm and Cn making up a straight chain of not less than 8 carbon atoms; B. a curable substantially linear polyorganosiloxane represented by the structure where R, R'' or R'''' is -CH3, -C2H5, -C3H7, phenyl, -OCH3 or -OC2H5, 60 percent through 100 percent (mol) being -CH3 and the silicon atoms within the brackets each bearing from 0.3 to 1 hydrogen atom and from 1 through 1.7 R'' or R'''' groups, the total being two; x and y are numbers which will give the siloxane a molecular weight of at least 500; the amount of fluorochemical in the composition being 25 percent through 90 percent and the amount of polyorganosiloxane being 10 percent through 75 percent, by weight of the total of (A) and (B); and C. a liquid carrier.
Claim 2
Dependent Claim
19 words
The process of claim 2 wherein the fluorochemical in subheading (A) is a polymer as described in subheading (1).
Claim 3
Dependent Claim
37 words
The process of claim 3 wherein the fluorochemical is a substantially linear polymer of ethylenically unsaturated monomers, at least 35 percent (by weight) of said monomers having the structure where m is a number 1 through 13.
Claim 4
Dependent Claim
56 words
The process of claim 4 wherein the fluorochemical is a terpolymer of a. a mixture of where m is 6, 8 and 10 in a 3:2:1 numerical ratio with a small amount of 12 and 14 present; b. n-butyl acrylate, and c. N-methylol acrylamide the weight ratios of (a), (b) and (c) being 1,000 /20/3 respectively.
Claim 5
Dependent Claim
10 words
The process of claim 5 wherein the carrier is water.
Claim 6
Dependent Claim
19 words
The process of claim 2 wherein the fluorochemical in subheading (A) is a compound as described in subheading (2).
Claim 7
Dependent Claim
26 words
The process of claim 7 wherein the fluorochemical is one represented by the formula where n is 6,8 and 10 in a numerical ratio of 3:2:1.
Claim 8
Dependent Claim
26 words
The process of claim 7 wherein the fluorochemical is one represented by the formula where n is 6,8 and 10 in a numerical ratio of 3:2:1.
Claim 9
Dependent Claim
26 words
The process of claim 7 wherein the fluorochemical is represented by the formula where n is 6,8 and 10 in a numerical ratio of 3:2:1 .
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) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |