Thermoplastic pattern material

Claim 2

A FILLED HEAT LIQUIDEFIABLE PATTERN MATERIAL FOR USE IN MAKING REFRACTORY MOLDS AND THE LIKE COMPRISING THE FOLLOWING MATERIALS IN A PPROXIMATE PERCENTAGES BY WEIGHT: 5-60 PERCENT OF A MATERIAL FROM THE GROUP CONSISTING OF MINERAL WAXES ANIMAL WAXES, VEGETABLE WAXES AND SYNTHETIC WAXES; 10 TO 60 PERCENT OF A HARD THERMOPLASTIC RESIN PLASTICIZED BY SAID WAX AND HAVING A SOFTENING POINT BETWEEN APPROXIMATELY 70:C AND APPROXIMATELY 160*C; AND 5 TO 45 PERCENT OF A POLYHYDRIC ALCOHOL OF TETRA SUBSTITUTED METHANE HAING MORE THAN ONE SUBSTITUTED NOPOLAR ALKYL CARBON ATOM AND HAVING ALCOHOL GROUPS OF UP TO AND INCLUDING SIX CARBON ATOMS WITH AN OH GROUP ON AT LEAST HALF OF THE CARBON ATOMS OF THE ALCOHOL GROUPS.

Claim 3

The material of claim 1 wherein said polyhydric alcohol is pentaerythritol.

Claim 4

The material of claim 2 wherein said resin is a polymer that includes a cycloalkene.

Claim 5

The material of claim 3 wherein said wax is a mineral wax.

Claim 6

A filled pattern material of the following composition in approximate percentages by weight:

Claim 7

A filled pattern material of the following composition in approximate percentages by weight:

Claim 8

The material of claim 5 having the following approximate composition in percents by weight:

Claim 9

The material of claim 1 wherein the polyhydric tetra substituted methane has the following composition:

Claim 10

A filled heat liquefiable pattern material for use in making refractory molds and the like comprising the following materials in approximate percentages by weight: 5-60 percent of a material from the group consisting of mineral waxes, animal waxes, vegetable waxes and synthetic waxes; 10 to 60 percent of a hard thermoplastic resin which is plasticized by said wax and having a softening point between approximately 70*C and approximately 160*C; and 5 to 45 percent of a material having the following formula:

Claim 11

A filled heat liquefiable pattern material for use in making refractory molds and the like comprising the following materials in approximate percentages by weight: 5-60 percent of a material from the group consisting of mineral waxes, animal waxes, vegetable waxes and synthetic waxes; 10 to 60 percent of a hard thermoplastic resin which is plasticized by said wax and having a softening point between approximately 70*C and approximately 160*C; and 5 to 45 percent of a material having the following formula:

Claim 12

A filled heat liquefiable pattern material for use in making refractory molds and the like comprising the following materials in approximate percentages by weight: 5-60 percent of a material from the group consisting of mineral waxes, animal waxes, vegetable waxes and synthetic waxes; 10 to 60 percent of a hard thermoplastic resin which is plasticized by said wax and having a softening point between approximately 70*C and approximately 160*C; and 5 to 45 percent of a material from the group consisting of: pentaerythritol; 2 hydroxymethyl, 2 methyl, 1-3 propanediol; 2(hydroxymethyl), 2 nitro 1,3propanediol; 2,2-dinitro-1,3-propanediol; 2 methyl, 2-nitro 1,3-propanediol; 2 amino-2(hydroxymethyl)-1,2-propanediol.

Claim 13

A filled heat liquefiable pattern material for use in making refractory molds and the like comprising the following materials in approximate percentages by weight: 5-60 percent of a material from the group consisting of mineral waxes, animal waxes, vegetable waxes and synthetic waxes; 10 to 60 percent of a hard thermoplastic resin which is plasticized by said wax and having a softening point between approximately 70*C and approximately 160*C; and 5 to 45 percent of a material from the group consisting of: pentaerythritol; 2 hydroxymethyl, 2 methyl, 1-3 propanediol; 2(hydroxymethyl), 2 nitro 1,3propanediol; 2,2-dinitro-1,3-propanediol; 2 methyl, 2-nitro 1,3-propanediol; 2 amino-2(hydroxymethyl)-1,2-propanediol.

Claim 14

A filled pattern material of the following composition in approximate percentages by weight:

Claim 15

A filled pattern material of the following composition in approximate percentages by weight:

Claim 16

A filled pattern material of the following composition in approximate percentages by weight:

Claim 17

A filled pattern material of the following composition in approximate percentages by weight:

Claim 18

A filled pattern material of the following composition in approximate percentages by weight:

Claim 19

A filled pattern material of the following composition in approximate percentages by weight: