Title: Water-based container end sealing compositions and their use

Abstract: Improved aqueous or water-based sealant compositions adapted for use as container end sealants are disclosed, which have a relatively high total solids content, are substantially or entirely free of volatile organic solvents, have thixotropic characteristics prior to setting, are settable under air-drying conditions, at ambient temperatures and within requisite periods of time, and are essentially based upon a particular combination of synthetic, elastomeric, high molecular weight polymer components generally provided by or from separate latex forms thereof, and a thixotropic, mineral flow control agent which imparts desirable thixotropic characteristics to the water-based sealants and also serves as a thickener and filler for the sealant and as an extender for the elastomeric polymers thereof, all in an aqueous, stable and uniform form. Furthermore, the use of those water-based sealant compositions, after setting, in sealing container ends in place, and the resultant hermetically sealed containers are disclosed.

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Other info:

Inventors: Neumann, Daniel L. (Waukegan, IL, US)

Application Number: 867617
Filing Date: 1978-01-06
Publication_date: 1980-05-06
Assignee: The Dexter Corporation (Windsor Locks, CT)
Primary Class(es): 220/614 220/619, 524/444, 524/446, 524/447, 524/521
Other Classes:
US Patent Ref:

2672454	Mar, 1954	Rother et al.	260/29.
2799662	Jul, 1957	Ernst et al.	260/29.
2905649	Sep, 1959	Craig et al.	260/29.
3015638	Jan, 1962	Sergi	260/29.
3079359	Feb, 1963	Stierli	260/29.
3125459	Mar, 1964	Foye	427/238.
3950280	Apr, 1976	Singleton	260/894.
3959206	May, 1976	Singleton	260/29.
3986629	Oct, 1976	Singleton	220/81.

Other Refs:
Primary Examiner: Jacobs, Lewis T.
Assistant Examiner:
Attorney: Merriam, Marshall & Bicknell