Thermoforming composition
AssigneesKyoto University, Daicel Corporation
InventorsNobuo SHIRAISHI, Mariko YOSHIOKA, Kenji KITAYAMA
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Abstract
The present disclosure provides a thermoforming composition with etherified wood powder.
Claims14
A composition for thermoforming, the composition comprising an etherified wood powder, wherein the etherified wood powder is grafted with a ring-opened polymer of a lactone compound.
A compatibilizer for a thermoplastic resin and an etherified wood powder, the compatibilizer comprising an etherified wood powder grafted with a ring-opened polymer of a lactone compound.
A method for producing a composition for thermoforming, the composition containing an etherified wood powder, the etherified wood powder being grafted with a ring-opened polymer of a lactone compound, the method comprising:
- (i) subjecting a wood powder to alkali treatment to produce an alkali-treated wood powder;
- (ii) reacting the alkali-treated wood powder with an etherifying agent to substitute a part or all of hydroxyl groups (—OH) contained in the wood powder with ether groups to produce an etherified wood powder;
- and
- (iii) (a) subjecting a lactone compound to ring-opening graft polymerization on the etherified wood powder, and/or (b) chemically bonding a ring-opened polymer of a lactone compound to the etherified wood powder, to produce an etherified wood powder grafted with the ring-opened polymer of the lactone compound.
Dependencies are inferred from the claim text.