Fibrous material having good dimensional and heat stability
US4341597A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 1980 |
| Grant date | Jul 27, 1982 |
| Priority date | — |
| Expiry date | May 5, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/692
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Fibrous material is provided comprising cellulose fibers and mineral wool fibers in a weight ratio within the range from about 3:7 to about 10:1, impregnated with an amount of a water-soluble polyoxyalkylene ether alcohol sufficient to impart dimensional stability thereto and having the formula: EQU R.sub.1 [--O--(C.sub.n.sbsb.1 H.sub.2n.sbsb.1 --O).sub.x --C.sub.n.sbsb.2 H.sub.2n.sbsb.2 --OH].sub.m wherein: PA0 R.sub.1 is hydrocarbon or hydrocarbon substituted with secondary hydroxyl groups and free from primary hydroxyl groups and having from one to about twenty-four carbon atoms; PA0 m is a number within the range from 1 to about 6; PA0 n.sub.1 is a number within the range from about 2 to about 4; PA0 n.sub.2 is a number within the range from 3 to 4; and PA0 --C.sub.n.sbsb.2 H.sub.2n.sbsb.2 --OH is a branched chain propylene or butylene group having only secondary OH groups; and PA0 the total of x in all of the m groups (x multiplied by m) is a number within the range from about 2 to about 200; and optionally also impregnated with a plastic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.