(19) |
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(11) |
EP 0 252 477 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
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19.09.1990 Bulletin 1990/38 |
(43) |
Date of publication A2: |
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13.01.1988 Bulletin 1988/02 |
(22) |
Date of filing: 06.07.1987 |
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(51) |
International Patent Classification (IPC)4: D06M 15/333 |
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(84) |
Designated Contracting States: |
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BE DE FR GB IT NL SE |
(30) |
Priority: |
07.07.1986 US 882760
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(71) |
Applicant: AIR PRODUCTS AND CHEMICALS, INC. |
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Trexlertown
Pennsylvania 18087 (US) |
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(72) |
Inventor: |
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- Marten, Finn Lennart
Macungie, PA 18062 (US)
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(74) |
Representative: Schwabe - Sandmair - Marx |
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Stuntzstrasse 16 81677 München 81677 München (DE) |
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(54) |
Waxless polyvinyl alcohol size composition |
(57) An aqueous waxiess size composition for textile yam comprising in an aqueous solution
(a) 100 parts polyvinyl alcohol and
(b) 2-6 parts ethylene oxide-propylene oxide surfactant which has a surface tension
less than 49 dynes/cm, preferably between about 40 to 48 dynes/cm, as a 0.1% aqueous
solution at 25°C, and desirably a foaming number less than about 20 (ml foam/g solution)°F
as a 7% aqueous polyvinyl alcohol solution containing 4 parts surfactant per 100 parts
polyvinyl alcohol.