Yarn-forming composition of polyamide and sulfonated acid...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

Reexamination Certificate

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Details

C057S351000, C057S362000, C264S103000, C264S168000, C264S172180, C428S085000

Reexamination Certificate

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06861480

ABSTRACT:
An acid dye stain-resistant fiber-forming polyamide composition comprising a fiber-forming polyamide and a reagent, at least a portion of which associates with free acid dye sites in the polyamide, thereby disabling the acid dye sites in fibers formed from the composition from taking up acid dye stains; a masterbatch concentrate for addition to a fiber-forming polyamide to form an acid dye stain-resistant fiber-forming polyamide composition comprising a carrier compatible with the fiber-forming polyamide combined with an amount of the above reagent in excess of that desired in the acid dye stain-resistant fiber-forming polyamide; as well as fibers and articles of manufacture prepared therefrom.

REFERENCES:
patent: 3142662 (1964-07-01), Huffman
patent: 3184436 (1965-05-01), Eugene
patent: 3296204 (1967-01-01), Caldwell
patent: 3365427 (1968-01-01), Ballentine et al.
patent: 3389549 (1968-06-01), David
patent: 3409596 (1968-11-01), Gunther et al.
patent: 3440226 (1969-04-01), Crovatt, Jr. et al.
patent: 3448087 (1969-06-01), Crovatt, Jr. et al.
patent: 3542743 (1970-11-01), Flamand
patent: 3553286 (1971-01-01), Murata et al.
patent: 3565910 (1971-02-01), Elbert et al.
patent: 3640942 (1972-02-01), Crampsey
patent: 3846507 (1974-11-01), Thomm et al.
patent: 3898200 (1975-08-01), Lofquist
patent: 3923749 (1975-12-01), Howell
patent: 4083893 (1978-04-01), Lofquist et al.
patent: 4097546 (1978-06-01), Lofquist
patent: 4303577 (1981-12-01), Ridgway et al.
patent: 4374641 (1983-02-01), Burlone
patent: 4391968 (1983-07-01), Merani et al.
patent: 4579762 (1986-04-01), Ucci
patent: 4680212 (1987-07-01), Blyth et al.
patent: 4780099 (1988-10-01), Greschler et al.
patent: 5108684 (1992-04-01), Anton et al.
patent: 5141692 (1992-08-01), Shridharani et al.
patent: 5145487 (1992-09-01), Hangey et al.
patent: 5164261 (1992-11-01), Windley
patent: 5236645 (1993-08-01), Jones
patent: 5279899 (1994-01-01), Asrar
patent: 4309436 (1994-09-01), None
patent: 35051 (1981-09-01), None
patent: 373655 (1990-06-01), None
patent: 421971 (1991-04-01), None
patent: 517203 (1992-12-01), None
patent: 901938 (1962-07-01), None
patent: 901939 (1962-07-01), None
patent: 1205563 (1970-09-01), None
patent: 05086287 (1993-04-01), None
patent: WO 9208828 (1992-05-01), None
patent: WO 9319239 (1993-09-01), None
Derwent accession No. 94-303668/38 for German Patent No. 4,309,436; Sandoz-Patent-GmbH, Sep. 1994.

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