Abstract: A laminate has at least two layers, at least one of which comprises a polymer having more than one perfluorocyclobutane group. Such polymers impart qualities of enviornmental or protection, chemical and solvent resistance, hydrolytic stability, lubricity, low dielectric, hydrostatic stability, weatherability, flame resistance, chemical resistance, hydrolytic stability, lubricity, environmental protection, scratch resistance, solvent resistance, surface passivation, water repellancy, lower surface refractive index, lower surface coefficient of friction, fluid barrier properties, oil repellancy, thermal stability, and/or reduced moisture pick-up. Additionally, the coatings are optically clear, easy to apply either neat, in a solvent or otherwise, have relatively low cure temperatures for their temperature resistance, and exhibit insulating and planarizing capabilities.

Abstract: A laminate has at least two layers, at least one of which comprises a polymer having more than one perfluorocyclobutane group. Such polymers impart qualities of enviornmental or protection, chemical and solvent resistance, hydrolytic stability, lubricity, low dielectric, hydrostatic stability, weatherability, flame resistance, chemical resistance, hydrolytic stability, lubricity, environmental protection, scratch resistance, solvent resistance, surface passivation, water repellancy, lower surface refractive index, lower surface coefficient of friction, fluid barrier properties, oil repellancy, thermal stability, and/or reduced moisture pick-up. Additionally, the coatings are optically clear, easy to apply either neat, in a solvent or otherwise, have relatively low cure temperatures for their temperature resistance, and exhibit insulating and planarizing capabilities.

Abstract: A non-flammable light weight non-carcinogenic asbestos-like thermal insulation and flame barrier structure comprising at least one layer of carbonaceous fibers and a suitable binder, said carbonaceous fibers being non-linear and having a reversible deflection ratio of greater than 1.2:1, an aspect ratio of greater then 10:1 and an LOI value of greater than 40.

Abstract: An antislosh, flame arresting structure for use in or with containers holding flammable fluids comprising a multiplicity of heat set carbonaceous fibers having an LOI value greater than 40 in an amount effective for preventing sloshing of the fluids and capable of arresting a flame front.

Abstract: An injection mold cavity is sealed at the mold parting line using a highly exact, narrow annular gap or clearance which restricts flash through of the molten plastic. The seal is designed for molds having a rotatable pin and comprises a fixed seating ring which seats with the mold cavity element, and a journable seal ring having a precisely machined seal face which is narrowly spaced from the lip of the mold cavity and defines the gap dimension with the assistance of the seating ring. The rings float at a unit against a resilient component which controls the seating pressure of the assembly independently of the clamping force of the mold. The foregoing components are unitized within a clamp ring under a preload compressive force with the critical gap dimension precisely built into the unit.

Abstract: A plastic container for planting tree seedlings in a mechanized process, and being in the shape of a projectile suitable for penetration into soil. The planting container is highly oriented in its longitudinal direction with a number of longitudinal grooves positioned on the inside, outside or both sides thereof. The grooves include slits and holes to permit drainage, egress of growing roots, and aiding in the self-destruction of the container after being injected into the ground with a seedling. The self-destruction can be further promoted by the use of stress cracking agents within the plastic material comprising the planting container.

Abstract: Plastic substrate in the form of sheet, disk, or plate is advantageously converted to a shaped article by first surface sulfonating the plastic substrate and thereafter cold forming the plastic substrate to the desired shape. Surface sulfonation of the plastic substrate prior to cold forming eliminates the need for lubricating the plastic substrate or surfaces of the cold forming apparatus.