Shatterproof organo - siloxane

Claim 1

A METHOD OF PREPARING A SHATTER-PROOF LAMINATE FROM PLASTIC SHEET MATERIALS WHICH COMPRISES APPLYING A MIXTURE OF (1) A TOLUENE-SOLUBLE, ACID-FREE COMPLETELY-CONDENSED ORGANOPOLYSILOXANE HAVING A VISCOSITY OF AT LEAST 1,000 CS. AT 25* C. AND HAVING FROM 1.9 TO 2.05 ORGANIC RADICALS PER SILICON ATOM, SAID RADICALS BEING OF THE GROUP CONSISTING OF MONOVALENT HYDROCARBON RADICALS AND HALOGEN DERIVATIVES THEREOF, AND (2) FROM .1 TO 5 PER CENT BY WEIGHT BASED ON THE POLYSILOXANE OF AN ESSENTIALLY NON-VOLATILE TOLURENE-SOLUBLE ALKOXY POLYSILICATE IN WHICH THE ALKOXY GROUPS CONTAIN LESS THAN 9 CARBON ATOMS, TO SAID SHEET MATERIAL, DEVOLATILIZING THE MIXTURE, LAMINATING THE SHEET MATERIALS SO AS TO PRODUCE ALTERNATE LAYERS OF THE MIXED SILIXONES AND SHEET MATERIAL AND THEREAFTER CURING THE LAMINATE UNTIL THE SILOXANE HAS BECOME INFUSIBLE AND BONDS THE LAYERS OF SHEET MATERIAL INTO A UNITARY STRUCTURE.