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Gerald J L Griffin: Degradable plastics. Epron, Laff Whitesel Conte & Saret, January 8, 1991: US04983651 (46 worldwide citation)

A degradable polymer composition is disclosed which comprises a blend of a normally stable chemically saturated polymer, such as polyethylene, a less stable chemically unsaturated polymer or copolymer, such as a styrene/butadiene block copolymer, or natural rubber, an antioxidant active over a limit ...


2
Gerald J L Griffin: Degradable plastics. Epron, Laff Whitesel Conte & Saret, May 18, 1993: US05212219 (16 worldwide citation)

A degradable polymer composition is disclosed which comprises a blend of a normally stable chemically saturated polymer, such as polyethylene, a less stable chemically unsaturated polymer or copolymer, such as a styrene/butadiene block copolymer, or natural rubber, an antioxidant active over a limit ...


3
Gerald J L Griffin: Hydrodegradable moulding materials. Epron, Webb Ziesenheim Bruening Logsdon Orkin & Hanson, October 24, 1995: US05460383

An article intended to be degraded when exposed to the environment is made from a brittle resinous or synthetic resin material incorporating moisture swellable particles as a filler, whereby exposure of the article to water induces fragmentation. In particular, hydrodegradable "clay pigeons" for sho ...


4
Griffin Gerald Joseph Louis: Plastique degradable a base de melanges poly-olefine/polydiene, Degradable plastics based on polyolefin/polydiene blends. Epron, RIDOUT & MAYBEE, March 28, 1995: CA1335005

A degradable polymer composition is disclosed which comprises a blend of a normally stable chemically saturated polymer, such as polyethylene, a less stable chemically unsaturated polymer or copolymer, such as a styrene/butadiene block copolymer, or natural rubber, an antioxidant active over a limit ...


5
Griffin Gerald Joseph Louis: Degradable plastics material. Epron, Griffin Gerald Joseph Louis, HOWDEN Christopher A, February 6, 1992: WO/1992/001741

The invention provides, for incorporation into thermoplastics to provide biodegradable plastics, a biologically sensitive filler comprising the alkaline earth metal salt, or Group III metal salt of a simple polybasic aliphatic acid or substituted aliphatic acid. Examples of such a filler include cal ...


6
Griffin Gerald Joseph Louis: Improvements in or relating to the production of plastics material incorporating starch. Epron, Griffin Gerald Joseph Louis, HOWDEN Christopher A, April 4, 1991: WO/1991/004286

A filler for plastics material comprises natural starch which, before admixture with synthetic resin, is treated in a solution of calcium hydroxide or other alkali-earth metal hydroxide or of a metal hydroxide coordination complex having an alkaline character and is subsequently washed and dried bef ...


7
Griffin Gerald Joseph Louis: Hydrodegradable moulding materials. Epron, Griffin Gerald Joseph Louis, HOWDEN Christopher A, January 21, 1993: WO/1993/001242

An article intended to be degraded when exposed to the environment is made from a brittle resinous or synthetic resin material incorporating moisture swellable particles as a filler, whereby exposure of the article to water induces fragmentation. In particular, hydrodegradable 'clay pigeons' for sho ...


8
Griffin Gerald Joseph Louis: Low toxicity shot pellets. Epron, Griffin Gerald Joseph Louis, HOWDEN Christopher A, October 27, 1994: WO/1994/024511

Low toxicity shot or pellets for shotgun cartridges or the like comprises finely divided metallic particles, preferably a mixture of finely divided molybdenum and tungsten particles, in a polymer matrix. The resulting pellets have a high density and are much less prone to damage the barrels of guns ...


9
Griffin Gerald Joseph Louis: Degradable plastics. Epron, HOWDEN Christopher A, December 1, 1988: WO/1988/009354

A degradable polymer composition is disclosed which comprises a blend of a normally stable chemically saturated polymer, such as polyethylene, a less stable chemically unsaturated polymer or copolymer, such as a styrene/butadiene block copolymer, or natural rubber, an anti-oxidant active over a limi ...


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