Applying Heat Or Pressure Patents (Class 264/319)
- Material is nonthermoplastic (Class 264/328.2)
- Including changing mold size or shape during injection or between multiple stages of injection (Class 264/328.7)
- With multiple injectors, mold cavities, or multiple steps of injection of material (Class 264/328.8)
- Including operation or design to minimize formation of gate, sprue, or flash (Class 264/328.9)
- Including movement of mold relative to injector (Class 264/328.11)
- Including specified direction or condition of flow in mold (Class 264/328.12)
- Including injection at two or more pressures (Class 264/328.13)
- With heating or cooling (Class 264/328.14)
- Pretreatment or preparation of charge material (Class 264/328.17)
- Synthetic resin containing (Class 264/331.11)
- Polymer having heterocyclic group or polymer derived from monomer having heterocyclic group except heterocyclic derived solely from carboxylic acid (i.e., cyclic imide, lactam, lactone, or anhydride) (Class 264/331.12)
- Polymer derived from monomer having at least two ethylenic groups (e.g., ABS rubber, chloroprene, etc.) or with natural rubber (Class 264/331.13)
- Fluorine (Class 264/331.14)
- Ethylenically unsaturated polymer or polymer derived from ethylenically unsaturated monomer (Class 264/331.15)
- Nitrogen containing (e.g., polyamide, polyurethane, etc.) (Class 264/331.19)
- Carboxylic acid or derivative (Class 264/331.21)
- Polymer derived from aldehyde (Class 264/331.22)