Vinyl halide resin compositions having high flex endurance

Claim 2

A SUBSTRATE COMPRISION ON A 100 WEIGHT PECENT TOTAL SUBSTRATE BASIS: A. AT LEATS ABOUT 50 WEIGHT PERCENT OOF A COMBINED CONJUGATED ALKADIENE CONTAINING FROM 4 THROUGH 6 CARBON ATOMS PER MOLECULE B. NOT MORE THAN 50 WIGHT PERCENT OF A COMBINED MONOVINYL AROMATIC COMPOUND CONTAINING FROM 8 THROUGH 10 CARBON ATOMS PER MOLECULE, AND C. NOT MORE THAN ABOUT 25 WEIGHT PERCENT OF A COMBINED ALKENE NITRILE CONTAINING FROM 3 THROUGH 5 CARBON ATOMS PER MOLECULE, 2 SAID SUBSTRATE BEING FURTHER CHARACTERIZED BY HAVING A. A GLASS PHASE TRANSITION TEMPERATURE BELOW ABOUT 0* C., AND B. A YOUNG''S MODULUS OF LESS THAN ABOUT 40,000 P.S.I.,

Claim 3

IN AN IMPROVED SEMI-RIGID VINYL HALIDE RESIN BASED POLYBLEND COMPRISING ON A 100 WEIGHT PRECENT TOTAL POLYBLEND COMPOSITION BASIS A. FROM ABOUT 1 TO 10 WEIGHT PERCENT OF A STABILIZER SYSTEM FOR SAID POLYBLEND, SAID STABILIZER SYSTEM BEING ADAPTED TO SUBSTANTIALLY PREVENT THERMAL DEGRADATION IN SAID POLYBLEND AT TEMPERATURES IN THE RANGE OF FROM ABOUT 120*C TO 215*C., AT INVERSE TIMES OF FROM ABOUT 30 MINUTES TO 10 MINUTES, B. UP TO ABOUT 50 WEIGHT PERCENT OF A PLASTICIZER SYSTEM, THE AMOUNT OF PLASTICIZER IN ANY GIVEN POLYBLEND BEING SUFFICIENT TO PRODUCE IN SAID POLYBLEND AFTER SUCH IS HEAT FUSED AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 120* TO 215*C., A STIFFINESS IN FLEXURE E VALUE IN THE RANGE OF FROM ABOUT 20,000 TO 200,000 PSI, AND C. FROM ABOUT 0.2 TO 2.5 WEIGHT PERCENT OF A LUBRICANT SYSTEM ADAPTED TO PERMIT RELEASE OF SAID POLYBLEND FROM A HEATED SOLID SURFACE AFTER SAID POLYBLEND BEEN HEAT FUSED AT A TEMPERATURE IN THE RENGE OF FROM ABOUT 120* TO 215*C., IN COMBINATION ON A 100 WEIGHT PERCENT BASIS: A. FROM ABOUT 20 TO 76 WEIGHT PERCENT OF VINYL HALIDE POLYMER SLECTED FROM THE GROUP CONSISTING OF HOMOPOLYVINYL CHLORIDE AND VINYL CHLORIDE COPOLYMERS COMPRISING AT LEAST ABOUT 85 WEIGHT PERCENT VINYL CHLORIDE MONOMER WITH THE BALANCE UP TO 100 WEIGHT PERCENT OF ANY GIVEN SUCH COPOLYMER BEING ANOTHER ETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZED WITH SAID VINYL CHLORIDE MONOMER, SAID VINYL HALIDE PLYMER BEING ITSELF CHARACTERIZED BY HAVING AN INHERENT VISCOSITY OF FROM ABOUT 0.70 THROUGH 1.5 IN A 0.2 WEIGHT PERCENT CYCLOHEXANONE SOLUTION AT ABOUT 25* TO 30*C., B. FROM ABOUT 20 TO 55 WEIGHT PERCENT OF A GRAFT COPOLYMER COMPRISING:

Claim 4

IN AN IMPROVED SEMI-RIGID VINYL HALIDE RESIN BASED POLYBLEND COMPRISING ON A 100 WEIGHT PRECENT TOTAL POLYBLEND COMPOSITION BASIS A. FROM ABOUT 1 TO 10 WEIGHT PERCENT OF A STABILIZER SYSTEM FOR SAID POLYBLEND, SAID STABILIZER SYSTEM BEING ADAPTED TO SUBSTANTIALLY PREVENT THERMAL DEGRADATION IN SAID POLYBLEND AT TEMPERATURES IN THE RANGE OF FROM ABOUT 120*C TO 215*C., AT INVERSE TIMES OF FROM ABOUT 30 MINUTES TO 10 MINUTES, B. UP TO ABOUT 50 WEIGHT PERCENT OF A PLASTICIZER SYSTEM, THE AMOUNT OF PLASTICIZER IN ANY GIVEN POLYBLEND BEING SUFFICIENT TO PRODUCE IN SAID POLYBLEND AFTER SUCH IS HEAT FUSED AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 120* TO 215*C., A STIFFINESS IN FLEXURE E VALUE IN THE RANGE OF FROM ABOUT 20,000 TO 200,000 PSI, AND C. FROM ABOUT 0.2 TO 2.5 WEIGHT PERCENT OF A LUBRICANT SYSTEM ADAPTED TO PERMIT RELEASE OF SAID POLYBLEND FROM A HEATED SOLID SURFACE AFTER SAID POLYBLEND BEEN HEAT FUSED AT A TEMPERATURE IN THE RENGE OF FROM ABOUT 120* TO 215*C., IN COMBINATION ON A 100 WEIGHT PERCENT BASIS: A. FROM ABOUT 20 TO 76 WEIGHT PERCENT OF VINYL HALIDE POLYMER SLECTED FROM THE GROUP CONSISTING OF HOMOPOLYVINYL CHLORIDE AND VINYL CHLORIDE COPOLYMERS COMPRISING AT LEAST ABOUT 85 WEIGHT PERCENT VINYL CHLORIDE MONOMER WITH THE BALANCE UP TO 100 WEIGHT PERCENT OF ANY GIVEN SUCH COPOLYMER BEING ANOTHER ETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZED WITH SAID VINYL CHLORIDE MONOMER, SAID VINYL HALIDE PLYMER BEING ITSELF CHARACTERIZED BY HAVING AN INHERENT VISCOSITY OF FROM ABOUT 0.70 THROUGH 1.5 IN A 0.2 WEIGHT PERCENT CYCLOHEXANONE SOLUTION AT ABOUT 25* TO 30*C., B. FROM ABOUT 20 TO 55 WEIGHT PERCENT OF A GRAFT COPOLYMER COMPRISING:

Claim 5

said substrate being further characterized by having a. a glass phase transition temperature below about 0*C., b. a Young''s Modulus of less than about 40,000 p.s.i., and

Claim 6

said substrate being further characterized by having a. a glass phase transition temperature below about 0*C., b. a Young''s Modulus of less than about 40,000 p.s.i., and

Claim 7

An improved semi-rigid vinyl halide resin based polyblend of claim 1 comprising: A. from about 20 to 76 weight percent homopolyvinyl chloride, said homopolyvinyl chloride polymer being itself characterized by having an inherent viscosity of from about 0.70 through 1.5 in a 0.2 weight percent cyclohexanone solution at about 25* to 30*C. B. from about 20 to 55 weight percent oF a graft copolymer comprising:

Claim 8

said substrate being further characterized by having a. a glass phase transition temperature below about 0* C., and b. A Young''s Modulus of less than about 40,000 p.s.i.,

Claim 9

said substrate being further characterized by having a. a glass phase transition temperature below about 0* C., and b. A Young''s Modulus of less than about 40,000 p.s.i.,

Claim 10

A heat fused polyblend of claim 1 formed into a sheet member of from about 10 to 125 mils in thickness, having a flex endurance of at least about 40,000 Ross Flex cycles.

Claim 11

a superstate comprising on a 100 weight percent total superstrate basis: a. from about 25 to 45 weight percent of combined acrylonitrile, and b. from about 55 to 75 weight percent of combined styrene,

Claim 12

a superstate comprising on a 100 weight percent total superstrate basis: a. from about 25 to 45 weight percent of combined acrylonitrile, and b. from about 55 to 75 weight percent of combined styrene,

Claim 13

a superstrate comprising on a 100 weight percent total superstrate basis: a. from about 15 to 50 weight percent of a combined alkene nitrile containing from 3 through 5 carbon atoms per molecule, and b. from about 50 to 85 weight percent of a combined monovinyl aromatic compound containing from 8 through 10 carbon atoms per molecule,

Claim 14

a superstrate comprising on a 100 weight percent total superstrate basis: a. from about 15 to 50 weight percent of a combined alkene nitrile containing from 3 through 5 carbon atoms per molecule, and b. from about 50 to 85 weight percent of a combined monovinyl aromatic compound containing from 8 through 10 carbon atoms per molecule,

Claim 15

A SUPERSTRATE COMPRISING ON A 100 WEIGHT PECENT TOTAL SUPERSTRATE BASIS: A. FROM ABOUT 15 TO 50 WIGHT PERCENT OF A COMBINED ALKENE NITRILE CONTAINING FROM 3 THROUGH 5 CARBON ATOMS PER MOLECULE, AND B. FROM ABOUT 50 TO 85 WEIGHT PERCENT OF A COMBINED MONOVINYL AROMATIC COMPOUND CONTAINING FROM 8 THROUGH 10 CARBON ATOMS PER MOLECULE,

Claim 16

A SUPERSTRATE COMPRISING ON A 100 WEIGHT PECENT TOTAL SUPERSTRATE BASIS: A. FROM ABOUT 15 TO 50 WIGHT PERCENT OF A COMBINED ALKENE NITRILE CONTAINING FROM 3 THROUGH 5 CARBON ATOMS PER MOLECULE, AND B. FROM ABOUT 50 TO 85 WEIGHT PERCENT OF A COMBINED MONOVINYL AROMATIC COMPOUND CONTAINING FROM 8 THROUGH 10 CARBON ATOMS PER MOLECULE,

Claim 17

A heat fused polyblend of claim 2 formed into a sheet member of from about 12 to 50 mils in thickness, having a flex endurance of at least about 40,000 Ross Flex cycles.

Claim 18

said superstrate being grafted to said substrate and C. from about 4 to 25 weight percent of a polymethylmethacrylate having a weight average molecular weight of from about 750,000 to 2,000,000, the improvement which comprises, said vinyl halide based polyblend wherein said substrate is further characterized by having a dispersed rubber particle size distribution such that at least about 95 weight percent thereof is in the form of particles ranging from about 1 to 3 microns in diameter and said superstrate being grafted to said substrate to the extent of about 90 to 120 parts by weight graft per 100 parts by weight of substrate.

Claim 19

said superstrate being grafted to said substrate and C. from about 4 to 25 weight percent of a polymethylmethacrylate having a weight average molecular weight of from about 750,000 to 2,000,000, the improvement which comprises, said vinyl halide based polyblend wherein said substrate is further characterized by having a dispersed rubber particle size distribution such that at least about 95 weight percent thereof is in the form of particles ranging from about 1 to 3 microns in diameter and said superstrate being grafted to said substrate to the extent of about 90 to 120 parts by weight graft per 100 parts by weight of substrate.

Claim 20

SAID SUPERSTRATE BEING GRAFTED TO SAID SUBSTRATE, AND C. FROM ABOUT 4 TO 25 WEIGHT PERCENT OF A POLYMETHYLETHACRYLATE HAVING A WEIGHT AVERAGE MOLECULAR WEIGHT OF AT LEAST ABOUT 200,000, THE IMPROVEMENT WHICH COMPRISES, SAID VINYL HALIDE BASED POLYBLEND WHEREIN: SAID SUBSTRATE IS FURTHER CHARACTERIZED BY HAVING A DISPERSED PARTICLE SIZE DISTRIBUTION SUCH THAT AT LEAST ABOUT 95 WEIGHT PERCENT THEREOF IS IN THE FORM OF PARTICLES RANGING FROM ABOUT 0.7 TO 15 MICRONS IN DIAMETER AND SAID SUPERSTRATE BEING GRAFTED TO SAID SUBSTRATE TO THE EXTENT OF ABOUT 70 TO 150 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF SUBSTRATE.

Claim 21

SAID SUPERSTRATE BEING GRAFTED TO SAID SUBSTRATE, AND C. FROM ABOUT 4 TO 25 WEIGHT PERCENT OF A POLYMETHYLETHACRYLATE HAVING A WEIGHT AVERAGE MOLECULAR WEIGHT OF AT LEAST ABOUT 200,000, THE IMPROVEMENT WHICH COMPRISES, SAID VINYL HALIDE BASED POLYBLEND WHEREIN: SAID SUBSTRATE IS FURTHER CHARACTERIZED BY HAVING A DISPERSED PARTICLE SIZE DISTRIBUTION SUCH THAT AT LEAST ABOUT 95 WEIGHT PERCENT THEREOF IS IN THE FORM OF PARTICLES RANGING FROM ABOUT 0.7 TO 15 MICRONS IN DIAMETER AND SAID SUPERSTRATE BEING GRAFTED TO SAID SUBSTRATE TO THE EXTENT OF ABOUT 70 TO 150 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF SUBSTRATE.

Claim 22

said superstrate being grafted to said substrate, and C. from about 4 to 25 weight percent of a polymethylmethacrylate having a weight average molecular weight of at least about 200, 000, the improvement which comprises, said vinyl halide based polyblend wherein: said substrate is further characterized by having a dispersed particle size distribution such that at least about 95 weight percent thereof is in the form of particles ranging from about 0.7 to 15 microns in diameter and said superstrate being grafted to said substrate to the extent of about 70 to 150 parts by weight per 100 parts by weight of substrate.

Claim 23

said superstrate being grafted to said substrate, and C. from about 4 to 25 weight percent of a polymethylmethacrylate having a weight average molecular weight of at least about 200, 000, the improvement which comprises, said vinyl halide based polyblend wherein: said substrate is further characterized by having a dispersed particle size distribution such that at least about 95 weight percent thereof is in the form of particles ranging from about 0.7 to 15 microns in diameter and said superstrate being grafted to said substrate to the extent of about 70 to 150 parts by weight per 100 parts by weight of substrate.