Brushing – scrubbing – and general cleaning – Implements – Brush or broom
Patent
1986-04-23
1988-06-21
Kendell, Lorraine T.
Brushing, scrubbing, and general cleaning
Implements
Brush or broom
428364, 428374, 428397, A46B 904, D02G 300
Patent
active
047517603
ABSTRACT:
A stretchable wholly aromatic polyamide fiber which (A) is composed of a wholly aromatic polyamide containing at least 85 mole %, based on the entire recurring units, of m-phenylene isophthalamide units as a main component, (B) does not substantially contain an aprotic polar solvent, (C) has an average denier size of 50 to 50,000, (D) when stretched to two times at the glass transition temperature of the wholly aromatic polyamide, has a maximum heat shrinkage under a fixed load of at least 30%.
A stretched wholly aromatic polyamide fiber which has the same properties with (A), (B) and (C), and (D) has a maximum heat shrinkage under a fixed load of at least 20% and (E) is substantially amorphous.
The present invention provides a stretchable and stretched wholly aromatic polyamide composite fiber containing inorganic pieces and processes for preparing the above fibers.
REFERENCES:
patent: 3751546 (1973-08-01), Horoldt
patent: 3850889 (1974-11-01), McKinney
patent: 4196118 (1980-04-01), Fujie et al.
patent: 4245066 (1981-01-01), Nakagawa et al.
patent: 4278779 (1981-07-01), Nakagawa et al.
patent: 4399084 (1983-08-01), Sagawa et al.
patent: 4526735 (1985-07-01), Norota et al.
Kendell Lorraine T.
Teijin Limited
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