Method of preparing additives for calcium sulphate plaster

Details Method of preparing additives for calcium sulphate plaster Method of preparing additives for calcium sulphate plaster

1974-03-11

1976-02-03

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

106115, 106315, C08L 128, C04B 3130

Patent

active

039363139

ABSTRACT:
A process is provided for preparing calcium sulphate plaster compositions having water-retaining and retarding characteristics, and comprising a water-soluble cellulose ether prepared by reacting cellulose mercerized with alkali hydroxide, and suitable reactants and a retarder. The mercerized cellulose still contains alkali impurities and an acid, the alkali salt of which is adapted to serve as calcium sulphate plaster retarder is added in an amount substantially equivalent to the amount of alkali hydroxide remaining in the cellulose ether.
Calcium sulphate plaster compositions also are provided as obtained by this process.

REFERENCES:
patent: 1510735 (1924-10-01), Baybutt
patent: 2118663 (1938-05-01), Bradshaw
patent: 2698254 (1954-12-01), Spurlin

Affiliated with

Also associated with

Rating

Method of preparing additives for calcium sulphate plaster does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of preparing additives for calcium sulphate plaster, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of preparing additives for calcium sulphate plaster will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2121191