Abstract A polyolefin micro-flake aggregation which is easily microflakable from the aggregation into a plurality of irregularly shaped micro-flakes suitable for producing synthetic paper, is manufactured from a solution of 5 - 40% by weight of polyolefin such as polyethylene and polypropylene in a solvent such as hydrocarbons and chlorinated hydrocarbons in the presence of a surface active compound of at least 0.01% based on the weight of the polyolefin by spraying the solution which is at a temperature of at least 100*C from a closed container into atmosphere through an orifice. A polyolefin synthetic paper is formed from a suspension of the micro-flakes in an organic liquid such as hydrocarbons and chlorinated hydrocarbons which can swell or partially dissolve the polyolefin.
A SYNTHETIC DRY MICRO-FLAKE AGGREGATE USEFUL FOR MANUFACTURING SYNTHETIC PAPER, WHICH COMPRISES NUMEROUS MICROFLAKES CONSISTING ESSENTIALLY OF AT LEAST ONE POLYOLEFIN AND 0.01% TO 15%, BASED ON THE WEIGHT OF SAID POLYOLEFIN, OF AT LEAST ONE SURFACE ACTIVE COMPOUND MIXED INTO SAID POLYOLEFIN, EACH MICO-FLAKE HAVING A SUBSTANTIALLY FLAT, IRREGULAR SHAPE AND AN AVERAGE THICKNESS OF 5 TO 20U, AN AVERAGE LENGTH AND WIDTH OF LESS THAN SUBSTANTIALLY 20MM., AND HAVING A SPECIFIC SURFACE AREA OF AT LEAST 0.1 M2/GM.
Claim 2
Dependent Claim
80 words
A SYNTHETIC DRY MICRO-FLAKE AGGREGATE USEFUL FOR MANUFACTURING SYNTHETIC PAPER, WHICH COMPRISES NUMEROUS MICROFLAKES CONSISTING ESSENTIALLY OF AT LEAST ONE POLYOLEFIN AND 0.01% TO 15%, BASED ON THE WEIGHT OF SAID POLYOLEFIN, OF AT LEAST ONE SURFACE ACTIVE COMPOUND MIXED INTO SAID POLYOLEFIN, EACH MICO-FLAKE HAVING A SUBSTANTIALLY FLAT, IRREGULAR SHAPE AND AN AVERAGE THICKNESS OF 5 TO 20U, AN AVERAGE LENGTH AND WIDTH OF LESS THAN SUBSTANTIALLY 20MM., AND HAVING A SPECIFIC SURFACE AREA OF AT LEAST 0.1 M2/GM.
Claim 3
Dependent Claim
23 words
A synthetic micro-flake aggregation as claimed in claim 1 wherein said micro-flakes have an average specific surface area of at least 0.2 m2/g.
Claim 4
Dependent Claim
25 words
A synthetic paper obtained from the synthetic micro-flake aggregate as claimed in claim 1, wherein said micro-flakes are interconnected with each other in random directions.