Protective coating for dry heat sterilizable glassware

Details Protective coating for dry heat sterilizable glassware Protective coating for dry heat sterilizable glassware

1983-06-06

1985-05-14

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

65 343, 65 344, 65 603, 4273722, 4273855, 4273897, 428431, 428440, 428441, 428442, B32B 1710, B32B 2728

Patent

active

045172420

ABSTRACT:
Method and coating composition for coating newly formed glass at relatively low temperature and without prior "hot end" treatment. In this method, the composition is applied in a conventional manner by spray, dip, or roller coating, the composition comprising a carboxylic functional resin in dilute aqueous solution, the solution also including a lubricity-imparting additive. The carboxylic functionality of the resin renders it water dispersible and also renders the finished coating receptive to conventional label adhesives, decorating printing, and so forth. The use of this composition, without cross-linking of the coating, protects the surface of the glass until sterilization at which time the composition is removed by hot water washing; the treated glassware is then sterilized by exposure to dry heat temperature above 400.degree. F. without surface discoloration.

REFERENCES:
patent: 3488215 (1970-06-01), Shepard
patent: 3939108 (1976-02-01), Sirota
patent: 3959539 (1976-05-01), Waggoner
patent: 4065589 (1977-12-01), Lerrard
patent: 4065590 (1977-12-01), Salensky
patent: 4131529 (1978-12-01), Osterloh
patent: 4168345 (1979-09-01), de Massey
patent: 4250068 (1981-02-01), Ali-Zaidi

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