Molded article of biodegradable cellulose acetate and filter plug for smoking article
AssigneeJapan Tobacco Inc.
InventorYoichiro Yamashita
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Abstract
A molded article molded from a cellulose acetate composition comprising, contained in cellulose acetate, a composite material of a decomposition accelerating agent formed of at least one compound selected from the group consisting of oxygen acid of phosphorus, oxygen acid of sulfur, oxygen acid of nitrogen, a partial ester or hydrogen salt of these oxygen acids, carbonic acid and its hydrogen salt, a sulfonic acid and a carboxylic acid, with a reaction controlling agent formed of at least one compound selected from the group consisting of a nitrogen-containing compound, a hydroxy compound, an oxygen-containing heterocyclic compound and a sulfur-containing heterocyclic compound.
Claims12
A molded article molded from biodegradable cellulose acetate composition comprising, contained in cellulose acetate, a composite material of
- a decomposition accelerating agent formed of at least one compound selected from the group consisting of oxygen acid of sulfur, oxygen acid of nitrogen, a partial ester or hydrogen salt of these oxygen acids, carbonic acid and its hydrogen salt, a sulfonic acid, a carboxylic acid, a phosphoric acid, a polyphosphoric acid, a phytic acid, a starch phosphate, a cellulose phosphate, a calcium hydrogenphosphate, a di-2-ethylhexyl phosphate, a phosphoric ester of 2-hydroxyethyl methacrylate and homopolymers thereof and copolymers thereof, a phosphoric ester of 2-hydroxyethyl phenyl methacrylate and homopolymers thereof and copolymers thereof, and an alkyl phosphoric ester of 2-hydroxyethyl methacrylate and homopolymers thereof and copolymers thereof, and
- a reaction controlling agent formed of a compound having an oxazolidone structure.
A molded article molded from biodegradable cellulose acetate composition comprising, contained in cellulose acetate, a composite material of
- a decomposition accelerating agent formed of at least one compound selected from the group consisting of oxygen acid of sulfur, oxygen acid of nitrogen, a partial ester or hydrogen salt of these oxygen acids, carbonic acid and its hydrogen salt, a sulfonic acid, a carboxylic acid, a phosphoric acid, a polyphosphoric acid, a phytic acid, a starch phosphate, a cellulose phosphate, a calcium hydrogenphosphate, a di-2-ethylhexyl phosphate, a phosphoric ester of 2-hydroxyethyl methacrylate and homopolymers thereof and copolymers thereof, a phosphoric ester of 2-hydroxyethyl phenyl methacrylate and homopolymers thereof and copolymers thereof, and an alkyl phosphoric ester of 2-hydroxyethyl methacrylate and homopolymers thereof and copolymers thereof, and
- a reaction controlling agent, wherein said reaction controlling agent is selected from the group consisting of 2-oxazolidone, 3-methyl-2-oxazolidone, polyvinyl oxazolidone, N-methylmorpholine N-oxide, N-methyl piperidine N-oxide, and triethyl amine N-oxide.
A tobacco filter plug comprising cellulose acetate fibers containing, in at least a surface region thereof, a composite material of a decomposition accelerating agent and a reaction controlling agent, wherein said decomposition accelerating agent is phosphoric acid or calcium hydrogenphosphate, and said reaction controlling agent is a compound having an oxazolidone structure.
A molded article molded from a biodegradable cellulose acetate composition comprising, contained in cellulose acetate, a composite material of
- a decomposition accelerating agent formed of at least one compound selected from the group consisting of phosphoric acid and calcium hydrogenphosphate, and
- a reaction controlling agent formed of at least one compound selected from the group consisting of a compound having a pyrrolidone structure and a compound having an oxazolidone structure.
A tobacco filter plug comprising cellulose acetate fibers containing, in at least a surface region thereof, a composite material of
- a decomposition accelerating agent containing at least one compound selected from the group consisting of phosphoric acid and calcium hydrogenphosphate, and
- a reaction controlling agent containing at least one compound selected from the group consisting of a compound having a pyrrolidone structure and a compound having an oxazolidone structure.
Dependencies are inferred from the claim text.