| Patent Number |
Title Of Patent |
Date Issued |
| 6500368 |
Polyolefin synthetic resin in-mold foam molding method |
Dec. 31, 2002 |
| 6454981 |
Method of forming a partially perforated foam |
Sep. 24, 2002 |
| 6299809 |
Method and composition for making foamed polyethylene material |
Oct. 9, 2001 |
| 6034144 |
Molded article of foamed and expanded beads of propylene resin |
Mar. 7, 2000 |
| 5776389 |
Process for making an alkenyl aromatic polymer foam having enlarged cell size |
Jul. 7, 1998 |
| 5585058 |
Method for providing accelerated release of a blowing agent from a plastic foam |
Dec. 17, 1996 |
| 5411689 |
Method for accelerating removal of residual blowing agent from extruded flexible foams |
May. 2, 1995 |
| 5385698 |
Dimensionally accurate expanded foam casting pattern |
Jan. 31, 1995 |
| 5254597 |
Production of chlorofluorocarbon-free, urethane-containing moldings having a cellular core and a compacted peripheral zone |
Oct. 19, 1993 |
| 5254596 |
Process for the manufacture of methanol and dimethyl ether |
Oct. 19, 1993 |
| RE34123 |
Method for enhancing thermal expandability of direct-injection foams |
Nov. 10, 1992 |
| 5115066 |
Polystyrene having high degree of expandability, and formulation having a highly-expandable polymer therein |
May. 19, 1992 |
| 5114640 |
Time-efficient process for making expanded polymeric products with multipass expansion of polystyrene bead |
May. 19, 1992 |
| 5110524 |
Process for making molded polymeric product with multipass expansion of polymer bead with low blowing agent content |
May. 5, 1992 |
| 5110834 |
Production of chlorofluorocarbon-free urethane-containing soft-elastic moldings having a cellular core and a compacted peripheral zone |
May. 5, 1992 |
| 5110836 |
Time-efficient process for making expanded polymeric products with multipass expansion of polystyrene bead |
May. 5, 1992 |
| 5110837 |
Process for making molded polymeric product with multipass expansion of polymer bead with low blowing agent content |
May. 5, 1992 |
| 5086078 |
Process for making expanded polymeric product with low level of emission of blowing agent |
Feb. 4, 1992 |
| 5059376 |
Methods for rapid purging of blowing agents from foamed polymer products |
Oct. 22, 1991 |
| 5041465 |
Reducing lustrous carbon in the lost foam process |
Aug. 20, 1991 |
| 4925606 |
Method for enhancing thermal expandability of direct-injection foams |
May. 15, 1990 |
| 4889671 |
Production method of prefoamed particles of polyolefin resin |
Dec. 26, 1989 |
| 4868055 |
Vinylidene chloride type resin expandable particles, foam particles, in-mold foam molding by use thereof and process for producing them |
Sep. 19, 1989 |
| 4861531 |
Process for production of expansion-molded articles in a mold of linear low density polyethylene resins |
Aug. 29, 1989 |
| 4822542 |
Method of production of expansion-molded article, from foamable thermoplastic resin particles and apparatus therefor |
Apr. 18, 1989 |
| 4818451 |
Method of preparing a foamed molded article and blow-filling gun apparatus for use therein |
Apr. 4, 1989 |
| 4816199 |
Method of dimensionally stabilizing polystyrene patterns and the like |
Mar. 28, 1989 |
| 4804507 |
Process and apparatus for producing gas pressurized foam particles |
Feb. 14, 1989 |
| 4777000 |
Production method of expansion-molded article of polypropylene resin |
Oct. 11, 1988 |
| 4721588 |
Closed circuit process for the production of expanded polystyrene foam |
Jan. 26, 1988 |
| 4717518 |
Novel process for making polyurethane products which require reduced crushing in preventing said products from substantially shrinking or changing dimensionally upon cooling |
Jan. 5, 1988 |
| 4704239 |
Process for the production of expanded particles of a polymeric material |
Nov. 3, 1987 |
| 4698191 |
Methods of producing molded products from foamed polypropylene particles |
Oct. 6, 1987 |
| 4695416 |
Method and apparatus for mould-forming expanded plastics form blocks |
Sep. 22, 1987 |
| 4692371 |
High temperature method of making elastomeric materials and materials obtained thereby |
Sep. 8, 1987 |
| 4631159 |
Method of aging expansion-molded body of polyolefin |
Dec. 23, 1986 |
| 4618468 |
Method for controlling bead size in the production of expandable styrene polymers by suspension polymerization |
Oct. 21, 1986 |
| 4613626 |
Vinylidene chloride type resin expandable particles, foam particles, in-mold foam molding by use thereof and process for producing them |
Sep. 23, 1986 |
| 4609512 |
Process for controlling bead size in the manufacture of expandable styrene polymers by suspension polymerization |
Sep. 2, 1986 |
| 4585605 |
Rigid thermoplastic resin foam and process for preparation thereof |
Apr. 29, 1986 |
| 4579700 |
Novel process for making flexible polyurethane cellular products including a novel cell opening technique |
Apr. 1, 1986 |
| 4579701 |
Method for obtaining low densities with particulate expandable polystyrene |
Apr. 1, 1986 |
| 4552904 |
Rigid thermoplastic resin foam and process for preparation thereof |
Nov. 12, 1985 |
| 4550003 |
Vinylidene chloride type resin expandable particles, foam particles, in-mold foam molding by use thereof and process for producing them |
Oct. 29, 1985 |
| 4510268 |
Directional flexibilization of expanded thermoplastic foam sheet for low temperature insulation |
Apr. 9, 1985 |
| 4510106 |
Process and apparatus for pre-foaming synthetic plastics |
Apr. 9, 1985 |
| 4504534 |
Core material for automobile bumpers |
Mar. 12, 1985 |
| 4485059 |
Polymer foam thermoformation process and apparatus therefor |
Nov. 27, 1984 |
| 4485193 |
Expandable synthetic resinous thermoplastic particles, method for the preparation thereof and the application therefor |
Nov. 27, 1984 |
| 4483809 |
Process for preparing polyolefin foam |
Nov. 20, 1984 |
