Inherently flexible, high strength sheeting from blends of a suspension chlorinated olefin polymer and post-chlorinated polyvinyl chloride

Claim 2

INHERENTLY FLEXIBLE HIGH STRENGTH SHEETING MATERIAL CONSISTING ESSENTIALLY OF A BLEND OF

Claim 3

GREATER THAN 70 PERCENT BY WEIGHT OF A CHLORINATED OLEFIN POLYMER PREPATED BY THE SUSPENSION CHLORINATION OF AN OLEFIN POLYMER HAVING AN ESSENTIALLY LINEAR STRUCTURE, SAID OLEFIN POLYMER BEING SELECTED FROM THE GROUP CONSISTING OF APOLYETHYLENE AND INTERPOLYMERS COMPOSED OF AT LEAST ABOUT 90 MOLE PERCENT ETHYLENE WITH ANY REMAINDER BEING AT LEAST ONE ETHYLENICALLY UNSATURATED COMONOMER, SUCH CHLORINATED OLEFIN POLYMER CONTAINING FROM 25 TO 50 WEIGHT PERCENT OF CHEMICALLY COMBINED CHLORINE WHEREIN SAID CHLORINATED OLEFIN POLYMER IS CHARACTERIZED BY REGIONS IN WHICH A MINOR PORTION OF THE CHLORINE ATOMS ALONG THE POLYMER CHAIN ARE DISTRIBUTED IN A NONSTATISTICAL BLOCKTYPE FASHION WHILE THE REMAINDER OF THE POLYMER IS CHLORINATED IN A RANDOM MANNER CHARACTERISTIC OF THAT OBTAINED BY SOLUTION CHLORINATION TECHNIQUES, WHEREIN SAID CHLORINATED OLEFIN POLYMER HAS A RELATIVELY CRYSTALLINITY OF LESS THAN ABOUT 10 PERCENT AND FORMS INDIVIDUAL SHEETING MATERIALS HAVING A TENSILE STRENGTH OF AT LEAST ABOUT 1,000 POUNDS PER SQUARE INCH, AN ELONGATION OF BETWEEN ABOUT 2000 AND 1,000 PERCENT AND A 100 PERCENT MODULUS OF BETWEEN ABOUT 150 AND 400 POUNDS PER SQUARE INCH; AND

Claim 4

GREATER THAN 70 PERCENT BY WEIGHT OF A CHLORINATED OLEFIN POLYMER PREPATED BY THE SUSPENSION CHLORINATION OF AN OLEFIN POLYMER HAVING AN ESSENTIALLY LINEAR STRUCTURE, SAID OLEFIN POLYMER BEING SELECTED FROM THE GROUP CONSISTING OF APOLYETHYLENE AND INTERPOLYMERS COMPOSED OF AT LEAST ABOUT 90 MOLE PERCENT ETHYLENE WITH ANY REMAINDER BEING AT LEAST ONE ETHYLENICALLY UNSATURATED COMONOMER, SUCH CHLORINATED OLEFIN POLYMER CONTAINING FROM 25 TO 50 WEIGHT PERCENT OF CHEMICALLY COMBINED CHLORINE WHEREIN SAID CHLORINATED OLEFIN POLYMER IS CHARACTERIZED BY REGIONS IN WHICH A MINOR PORTION OF THE CHLORINE ATOMS ALONG THE POLYMER CHAIN ARE DISTRIBUTED IN A NONSTATISTICAL BLOCKTYPE FASHION WHILE THE REMAINDER OF THE POLYMER IS CHLORINATED IN A RANDOM MANNER CHARACTERISTIC OF THAT OBTAINED BY SOLUTION CHLORINATION TECHNIQUES, WHEREIN SAID CHLORINATED OLEFIN POLYMER HAS A RELATIVELY CRYSTALLINITY OF LESS THAN ABOUT 10 PERCENT AND FORMS INDIVIDUAL SHEETING MATERIALS HAVING A TENSILE STRENGTH OF AT LEAST ABOUT 1,000 POUNDS PER SQUARE INCH, AN ELONGATION OF BETWEEN ABOUT 2000 AND 1,000 PERCENT AND A 100 PERCENT MODULUS OF BETWEEN ABOUT 150 AND 400 POUNDS PER SQUARE INCH; AND

Claim 5

BETWEEN ABOUT 5 AND LESS THAN 30 PERCENT BY WEIGHT OF A POST-CHLORINATED POLYVINYL CHLORIDE CONTAINING VROM ABOUT 60 TO ABOUT 72 PERCENT CHLORINE; SAID THERMOPLASTIC SHEET ING MATERIAL HAVING A THICKNESS OF ABOUT 0.005 TO 0.25 OF AN INCH AND HAVING AN ULTIMATE TENSILE STRENGTH OF AT LEAST ABOUT 1,200 POUNDS PER SQUARE INCH AT 23*C AS DETERMINED BY ASTM TEST NUMBER D-412 AND A STIFFNESS OF LESS THAN ABOUT 2,500 POUNDS PER SQUARE INCH AT 25*C AS DETERMINED BY ASTM TEST NUMBER D-797.

Claim 6

BETWEEN ABOUT 5 AND LESS THAN 30 PERCENT BY WEIGHT OF A POST-CHLORINATED POLYVINYL CHLORIDE CONTAINING VROM ABOUT 60 TO ABOUT 72 PERCENT CHLORINE; SAID THERMOPLASTIC SHEET ING MATERIAL HAVING A THICKNESS OF ABOUT 0.005 TO 0.25 OF AN INCH AND HAVING AN ULTIMATE TENSILE STRENGTH OF AT LEAST ABOUT 1,200 POUNDS PER SQUARE INCH AT 23*C AS DETERMINED BY ASTM TEST NUMBER D-412 AND A STIFFNESS OF LESS THAN ABOUT 2,500 POUNDS PER SQUARE INCH AT 25*C AS DETERMINED BY ASTM TEST NUMBER D-797.

Claim 7

between about 5 and less than 30 percent by weight of a post-chlorinated polyvinyl chloride containing from about 60 to 72 percent chlorine; said thermoplastic sheeting material having a thickness of about 0.005 to 0.25 of an inch and having an ultimate tensile strength of at least about 1,200 pounds per square inch at 23*C. as determined by ASTM Test Number D-412 and a stiffness of less than about 2,500 pounds per square inch at 25*C. as determined by ASTM Test Number D-797.

Claim 8

between about 5 and less than 30 percent by weight of a post-chlorinated polyvinyl chloride containing from about 60 to 72 percent chlorine; said thermoplastic sheeting material having a thickness of about 0.005 to 0.25 of an inch and having an ultimate tensile strength of at least about 1,200 pounds per square inch at 23*C. as determined by ASTM Test Number D-412 and a stiffness of less than about 2,500 pounds per square inch at 25*C. as determined by ASTM Test Number D-797.

Claim 9

The sheet material of claim 1 wherein said chlorinated olefin polymer is chlorinated polyethylene.

Claim 10

The sheet material of claim 2 wherein said chlorinated polyethylene has a molecular weight of less than about 1,000,000.

Claim 11

The sheet material of claim 3 wherein said chlorinated polyethylene has a molecular weight of between about 20,000 and 300,000.

Claim 12

The sheet material of claim 4 wherein said chlorinated polyethylene contains between about 35 and 48 weight percent chlorine.

Claim 13

The sheet material of claim 5 wherein said after-chlorinated polyvinyl chloride contains about 68 percent chlorine.