CA2102927A1 - Biodegradable Cellulose Ester Composition and Article - Google Patents

Biodegradable Cellulose Ester Composition and Article

Info

Publication number
CA2102927A1
CA2102927A1 CA2102927A CA2102927A CA2102927A1 CA 2102927 A1 CA2102927 A1 CA 2102927A1 CA 2102927 A CA2102927 A CA 2102927A CA 2102927 A CA2102927 A CA 2102927A CA 2102927 A1 CA2102927 A1 CA 2102927A1
Authority
CA
Canada
Prior art keywords
cellulose ester
composition
average degree
substitution
weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2102927A
Other languages
French (fr)
Other versions
CA2102927C (en
Inventor
Masanori Itoh
Atsunobu Kiyose
Katsumi Hirao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daicel Corp
Original Assignee
Masanori Itoh
Atsunobu Kiyose
Katsumi Hirao
Daicel Chemical Industries, Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27327302&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2102927(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Masanori Itoh, Atsunobu Kiyose, Katsumi Hirao, Daicel Chemical Industries, Ltd. filed Critical Masanori Itoh
Publication of CA2102927A1 publication Critical patent/CA2102927A1/en
Application granted granted Critical
Publication of CA2102927C publication Critical patent/CA2102927C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/08—Cellulose derivatives
    • C08L1/10—Esters of organic acids, i.e. acylates
    • C08L1/12—Cellulose acetate
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/067—Use of materials for tobacco smoke filters characterised by functional properties
    • A24D3/068—Biodegradable or disintegrable
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/08—Cellulose derivatives
    • C08L1/10—Esters of organic acids, i.e. acylates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/06—Biodegradable
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31971—Of carbohydrate

Abstract

The composition comprising a cellulose ester including at least 10 weight o of a low-substituted cellulose ester having an average degree of substitution not exceeding 2.15 and giving a 4-week decomposition rate of at least 60 weight % as determined using the amount of evolution of carbon dioxide as an indicator in accordance with ASTM D5209. The composition may contains a plasticizer, an aliphatic polyester, a photolysis accelerator such as anatase type titanium dioxide or a biodegradation accelerator such as organic acids and their esters. The low-substituted cellulose ester may be a cellulose ester having an average degree of polymerization from 50 to 250, an average degree of substitution from 1.0 to 2.15 and a residual alkali metal/alkaline earth metal-to-residual sulfuric acid equivalent ratio of 0.1 to 1.1. The biodegradable cellulose ester composition is suitable for the manufacture of various articles including fibrous articles such as tobacco filters.
CA 2102927 1992-11-13 1993-11-12 Biodegradable cellulose ester composition and article Expired - Lifetime CA2102927C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP328646/1992 1992-11-13
JP32864692 1992-11-13
JP19681993 1993-07-13
JP196819/1993 1993-07-13
JP19682093 1993-07-13
JP196820/1993 1993-07-13

Publications (2)

Publication Number Publication Date
CA2102927A1 true CA2102927A1 (en) 1994-05-14
CA2102927C CA2102927C (en) 2000-03-28

Family

ID=27327302

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2102927 Expired - Lifetime CA2102927C (en) 1992-11-13 1993-11-12 Biodegradable cellulose ester composition and article

Country Status (8)

Country Link
US (3) US5478386A (en)
EP (2) EP0597478B1 (en)
KR (1) KR100227400B1 (en)
CN (1) CN1067415C (en)
CA (1) CA2102927C (en)
DE (2) DE69316836T2 (en)
PH (1) PH30463A (en)
TW (1) TW256845B (en)

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Also Published As

Publication number Publication date
DE69333157T2 (en) 2004-06-09
DE69316836T2 (en) 1998-06-18
EP0792913B1 (en) 2003-08-20
US5478386A (en) 1995-12-26
US5609677A (en) 1997-03-11
CN1067415C (en) 2001-06-20
DE69316836D1 (en) 1998-03-12
EP0792913A2 (en) 1997-09-03
EP0792913A3 (en) 1997-09-24
DE69333157D1 (en) 2003-09-25
US5720803A (en) 1998-02-24
TW256845B (en) 1995-09-11
PH30463A (en) 1997-05-28
KR100227400B1 (en) 1999-11-01
CA2102927C (en) 2000-03-28
EP0597478B1 (en) 1998-02-04
EP0597478A1 (en) 1994-05-18
CN1088595A (en) 1994-06-29
KR940011541A (en) 1994-06-21

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