| (19) |
 |
|
(11) |
EP 0 057 985 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
16.11.1983 Bulletin 1983/46 |
| (43) |
Date of publication A2: |
|
18.08.1982 Bulletin 1982/33 |
| (22) |
Date of filing: 19.01.1982 |
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| (84) |
Designated Contracting States: |
|
AT BE CH DE FR GB IT LI NL SE |
| (30) |
Priority: |
06.02.1981 US 232103
|
| (71) |
Applicant: ROHM AND HAAS COMPANY |
|
() |
|
| (72) |
Inventors: |
|
- Morris, Hal Conly
()
- Glusker, Donald Leonard
()
- Kantner, George Campbell
()
|
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| |
|
| (54) |
Method of permanently sizing polyester yarns and fabrics woven therewith |
(57) In a method for permanently sizing a polyester or polyester-blend yarn wherein an
aqueous sizing composition is applied to the yarn and subsequently cured, the sizing
composition comprises an aqueous polymer latex of an emulsion polymer comprising
45 to 65% by weight of one or more polymerised (C4 - C8 alkyl)acrylates,
28 to 52% by weight of one or more vinyl polymerised aromatic compounds or a mixture
thereof with up to an equal weight of polymerised methyl methacrylate, and 3 to 14%
by weight of one or more of polymerised acrylic, methacrylic or itaconic acid
and containing 2 to 40% by weight of a melamine aminoplast resin, based on the weight
of the polymer. By incorporating a pigment in the sizing composition colour fast pigmented
sized yarns and fabrics can be produced.