Document r601M2BVqDwYM49Q61djVBnOq

.c-: a 3EbtA*CH /HIM ATION eplltzky h 18, 19 2 ible ths exfolial ctive ns itions. able maj tive si . formed . eurfac Our Zo cBitlon . what p tents or aer T.G.0 G.W.l J.G.J1 O.D.f J*A*1 w. r. GRACE a co. RESEARCH DIVISION Washington Raaaarch Center, Clarkaviiio, Maryland 53 [QAC C March 18, 1963 Mr. Gerald Teplitzky V/. R, Grace & Co. Dewey" and Airy Chemical Division 62 '.hittemore Avenue Cambridge UO, i-iassachusetts Dear Jerry i Ret Evaluation of Frank v.are's Phosphate Rock Invention lour subject note of March 13th transmitted copies of Ware's two patent applications (with appended claims), several pieces of coated, ply-wood, and a small piece of plaster composition. Comments on the possible worth to Grace of 'Ware's development were requested* If I read Ware's applications correctly, he would like to own the use of naturally occurlng phosphate rock when included in fire retard ant plasters and other coatings, or when employed to control fire propagation in grass, brush, and the like* The application entitled "A FIRE RETARDING COMPOSITION AND METHOD OF USING PHOSPHATE ROCK AND SHALE" broadly claims "a fire retarding composition consisting essentially of a naturally-occuring phosphate rock and shale from phosphoric formations and deposits - - -n. Sub* sequent claims are limited by the inclusion of an organle adhesive* The use of finely ground phosphate rock as a fertilizer material is old in the art* I question whether Ware will be able to obtain a patent on the use of this material alone or in conjunction with an organle adhesive, for its fire retardant benefit* - The application entitled "FIRE RESISTANT CEMENTITIOUS PLASTER COMPOSITION" is directed to a method of preparing fire resistant cement itious plaster compositions by adding thereto effective amounts of a naturally occurlng phosphate rock and shale* Broadly, Ware seeks to own various plaster compositions containing naturally occurlng phos phate rock and shale. Subsequent claims cover compositions compris ing exfoliated vemiculite (Zonolite) and other binders, both organle and inorganic. If this patent Isj.ucs, and the Inclusion of phosphate rock In plaster can be demonstrated to be efficacious, this patent could bs of interest to Grace* 10016900 A fire resistant, cementitious composition must have certain basie properties, namely, the ability to Insulate the protected body fron flame temperatures, and maintain structural integrity. It is w. r. GRACE & co. f : RESEARCH DIVISION Washington Raaaareh Cantar, Clarkavma, Maryland Karch 18t 1963 Gerald Teplitzky R. Grace & Co* wey and Airy Chemical Division '.hitteraore Avenue abridge UQ, isassachusetts ar Jerryi Ret Evaluation of Frank Ware's Phosphate Rock Invention Your subject note of March 13th transmitted copies of Ware' s two tent applications (with appended claims), several pieces of coated y*wood, and a small piece of plaster composition. Comments on the ssible worth to Grace of V/are's development were requested* If I read Ware's applications correctly* he would like to own the e of naturally occurlng phosphate rock when included in fire retard* X plasters and other coatings* or when employed to control fire opagatian in grass* brush* and the like. The application entitled "A FIRE RETARDED COMPOSITION AND METHOD ' USING PHOSPHATE ROCK AND SHALE" broadly claims "a fire retarding imposition consisting essentially of a naturally-occuring phosphate ~k and shale from phosphoria formations and deposits - - -n. Sub* r.t claims are limited by the inclusion of an organic adhesive* . use of finely ground phosphate rock as a fertiliser material is Ld in the art. I question whether Ware will be able to obtain a vbent on the use of this material alone or in conjunction with an .'ganio adhesive* for its fire retardant benefit. - The application entitled "FIRE RESISTANT CEMEliTITIGUS PIASTER ZSPOblTIGN" is directed to a method of preparing fire resistant cement* ;icus plaster compositions by adding thereto effective amounts of a iturally occurlng phosphate rock and shale. Broadly* Ware seeks to m various plaster compositions containing naturally occurlng phoslate rock and shale. Subsequent claims cover compositions campris* lg exfoliated venniculite (Zonolite) and other binders* both organic nd inorganic. If this patent issues* and the inclusion of phosphate sck in plaster can be demonstrated to be efficacious* this patent auld be of interest to Grace. A fire resistant* cementitious composition must have certain isio properties* namely* the ability to insulate the protected body com flame temperatures* and maintiin structural Integrity. It is i *0016901