Multiple purpose patching composition

Details Multiple purpose patching composition Multiple purpose patching composition

1990-01-03

1991-12-24

Dixon, Jr., William R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524 6, 524 7, 524 8, 106689, 106778, 106802, C08L 908, C08L 1302

Patent

active

050753584

ABSTRACT:
A latex modified mortar or concrete material in which a polymeric or latex binding material is combined with a low shrinkage (gypsum) cement and fine fillers. Use of the low shrinkage cement and a higher than previously considered functional ratio of latex binding material to low shrinkage cement permits the resulting patching composition to obtain unexpectedly good adhesion, reduced cracking tendencies, dimensional stability, and flexibility required while maintaining enhanced strength properties. The polymeric binding material may be either an elastomeric or a thermoplastic latex.

REFERENCES:
patent: 2238975 (1941-04-01), Crossfield
patent: 3940358 (1976-02-01), Bernett et al.
patent: 4367093 (1983-01-01), Burkhalter et al.

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