UST901001I4 - Defensive publication - Google Patents
Defensive publication Download PDFInfo
- Publication number
- UST901001I4 UST901001I4 US901001DH UST901001I4 US T901001 I4 UST901001 I4 US T901001I4 US 901001D H US901001D H US 901001DH US T901001 I4 UST901001 I4 US T901001I4
- Authority
- US
- United States
- Prior art keywords
- rubber
- temperature
- fabric
- heating
- range
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/647—Including a foamed layer or component
- Y10T442/652—Nonwoven fabric is coated, impregnated, or autogenously bonded
Definitions
- a method for the preparation of a faced sponge rubber carpet underlayment comprising forming a foamable and curable rubber layer, heating the rubber, laying a bonded nonwoven sheet of synthetic organic fibers fiat atop the hot layer of rubber at a temperature in the range of about and C. but below that or equal to the temperature at which the fabric exhibits maximum shrinkage, and then heating the combination to a temperature in the range of about to C. to effect foaming and curing of the rubber as well as adhesion of the rubber to the fabric, the said fabric having a net irreversible thermal shrinkage in the lengthwise and Widthwise directions of between about 1.2 and 5% when heated to about 170 C. and subsequently cooled.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
A METHOD FOR THE PREPARATION OF A FACED SPONGE RUBBER CARPET UNDERLAYMENT COMPRISING FORMING A FOAMABLE AND CURABLE RUBBER LAYER, HEATING THE RUBBER, LAYING A BONDED NONWOVEN SHEET OF SYNTHETIC ORGANIC FIBERS FLAT ATOP THE HOT LAYER OF RUBBER AT A TEMPERATURE IN THE RANGE OF ABOUT 90 AND 150*C, BUT BELOW THAT OR EQUAL TO THE TEMPERATURE AT WHICH THE FABRIC EXHIBITS MAXIMUM SHRINKAGE, AND THEN HEATING THE COMBINATION TO A TEMPERATURE IN THE RANGE OF ABOUT 170 TO 190*C, TO EFFECT FOAMING AND CURING OF THE RUBBER AS WELL AS ADHESTION OF THE RUBBER TO THE FABRIC, THE SAID FABRIC HAVING A NET IRREVERSIBLE THERMAL SHRINKAGE IN THE LENGTHWISE AND WIDTHWISE DIRECTIONS OF BETWEEN ABOUT 1.2 AND 5% WHEN HEATED TO ABOUT 170*C, AND SUBSEQUENTLY COOLED.
Description
EFENSTVE PULTC TIN UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 0.6. 687. The abstracts of Defensive Publication applications are identified. by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are-available to the public-for inspection and reproduction may be purchased for 30 cents a sheet.
Defensive Publication applications have not been examined as to the merits of alleged invention. The Pgitent Oiiice makes no assertion as to the novelty of the disclosed subject matter;
PUBLISHED AUG. 1, 1972 PROCESS FOR FACING A SPONGE RUBBER CAR- PET UNDERLAYMENT WHTH A NONWOVEN FIBROUS SHEET Brian R. Phillips and Richard D. Hutchins, Wilmington,
Del., assignors to E. I. du Pont de Nemours and Company, Wilmington, Del.
Original application Feb. 28, 1969, Ser. No. 803,425, now Patent No. 3,575,784, dated Apr. 20, 1971. Divided and this application Dec. 9, 1970, Ser. No. 96,635
Int. Cl. 1332b /18 US. Cl. 156-79 No Drawing. 16 Pages Specification A method for the preparation of a faced sponge rubber carpet underlayment comprising forming a foamable and curable rubber layer, heating the rubber, laying a bonded nonwoven sheet of synthetic organic fibers fiat atop the hot layer of rubber at a temperature in the range of about and C. but below that or equal to the temperature at which the fabric exhibits maximum shrinkage, and then heating the combination to a temperature in the range of about to C. to effect foaming and curing of the rubber as well as adhesion of the rubber to the fabric, the said fabric having a net irreversible thermal shrinkage in the lengthwise and Widthwise directions of between about 1.2 and 5% when heated to about 170 C. and subsequently cooled.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US80342569A | 1969-02-28 | 1969-02-28 | |
| US9663570A | 1970-12-09 | 1970-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST901001I4 true UST901001I4 (en) | 1972-08-01 |
Family
ID=26791905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US901001D Pending UST901001I4 (en) | 1969-02-28 | 1970-12-09 | Defensive publication |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST901001I4 (en) |
-
1970
- 1970-12-09 US US901001D patent/UST901001I4/en active Pending
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