BR112012024662A2 - filtro de cigarro ambientalmente degradável - Google Patents

filtro de cigarro ambientalmente degradável

Info

Publication number
BR112012024662A2
BR112012024662A2 BR112012024662A BR112012024662A BR112012024662A2 BR 112012024662 A2 BR112012024662 A2 BR 112012024662A2 BR 112012024662 A BR112012024662 A BR 112012024662A BR 112012024662 A BR112012024662 A BR 112012024662A BR 112012024662 A2 BR112012024662 A2 BR 112012024662A2
Authority
BR
Brazil
Prior art keywords
cigarette filter
acid
cellulose acetate
acetate tow
environmentally degradable
Prior art date
Application number
BR112012024662A
Other languages
English (en)
Inventor
Raymond M Robertson
William C Thomas
Original Assignee
Celanese Acetate Llc
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
Application filed by Celanese Acetate Llc filed Critical Celanese Acetate Llc
Publication of BR112012024662A2 publication Critical patent/BR112012024662A2/pt

Links

Classifications

    • 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

filtro de cigarro ambientalmente degradável. um filtro de cigarro ambientalmente degradável inclui um elemento de filtro de uma estopa de acetato de celulose gelatinizado e um invólucro de tampão em torno do dito elemento de filtro. um ácido orgânico fraco e um sal de éster inorgânico de ph ajustado são encapsulados em um material de matriz que está em contato com a estopa. o sal de éster inorgânico de ph ajustado tem um ph menor ou igual a 8. quando o filtro de cigarro é descartado no meio ambiente, a água libera o ácido fraco e o sal de éster do material de matriz. o ácido fraco hidrolisa o éster degradação da estopa de acetato de celulose. (o ácido fraco também hidrolisa a estopa de acetato de celulose, mas depois do ácido forte ser gerado, o ácido forte torna-se o catalisador ácido dominante para a degradação de estopa de acetato de celulose).
BR112012024662A 2010-03-30 2011-03-09 filtro de cigarro ambientalmente degradável BR112012024662A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/749,543 US8327856B2 (en) 2010-03-30 2010-03-30 Environmentally degradable cigarette filter
PCT/US2011/027645 WO2011123221A1 (en) 2010-03-30 2011-03-09 Environmentally degradable cigarette filter

Publications (1)

Publication Number Publication Date
BR112012024662A2 true BR112012024662A2 (pt) 2016-06-07

Family

ID=44708173

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112012024662A BR112012024662A2 (pt) 2010-03-30 2011-03-09 filtro de cigarro ambientalmente degradável

Country Status (13)

Country Link
US (1) US8327856B2 (pt)
EP (1) EP2552262A4 (pt)
JP (1) JP5543661B2 (pt)
KR (1) KR101386347B1 (pt)
CN (1) CN102892317B (pt)
BR (1) BR112012024662A2 (pt)
CA (1) CA2793298C (pt)
MX (1) MX2012011372A (pt)
MY (1) MY152469A (pt)
RU (1) RU2511836C1 (pt)
SG (1) SG184269A1 (pt)
UA (1) UA103728C2 (pt)
WO (1) WO2011123221A1 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120080044A1 (en) * 2010-09-30 2012-04-05 Aiger Group Ag Cigarette filter including chemical compositions adapted to decompose cellulose acetate
US20130220349A1 (en) * 2012-02-23 2013-08-29 Celanese Acetate Llc Deformable tablet with water triggered catalyst release
JP5225489B1 (ja) 2012-06-14 2013-07-03 株式会社ダイセル タバコフィルター
CN103126071A (zh) * 2013-02-27 2013-06-05 云南烟草科学研究院 一种能降低烟气烟碱释放量的嘴棒
KR102288257B1 (ko) * 2019-10-25 2021-08-10 주식회사 케이티앤지 천연식물소재를 함유한 기능성 담배필터, 담배 및 그 제조방법
CN114688668B (zh) * 2022-03-23 2023-10-03 四川长虹电器股份有限公司 用于空气净化器产品的组合式光催化滤网及其制备方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2881772A (en) 1956-02-29 1959-04-14 Eastman Kodak Co Tobacco smoke filters
AU591248B2 (en) * 1986-03-27 1989-11-30 Kinaform Technology, Inc. Sustained-release pharaceutical preparation
US5417682A (en) * 1991-01-30 1995-05-23 Alza Corporation Device for administering active agent to biological environment
US5750145A (en) * 1995-07-28 1998-05-12 Bristol-Myers Squibb Company Stable gelatin coated aspirin tablets
JP3677332B2 (ja) * 1995-10-20 2005-07-27 ダイセル化学工業株式会社 たばこフィルター用素材およびそれを用いたたばこフィルター
JP2931810B1 (ja) * 1998-03-31 1999-08-09 日本たばこ産業株式会社 生分解性セルロースアセテート成形品およびたばこ用フィルタープラグ
WO2000053832A1 (fr) * 1999-03-11 2000-09-14 Japan Tobacco Inc. Constructions biodegradables en acetate de cellulose et filtre pour tabac
US9155335B2 (en) * 2007-12-17 2015-10-13 Celanese Acetate Llc Degradable cigarette filter

Also Published As

Publication number Publication date
MX2012011372A (es) 2012-11-12
CN102892317A (zh) 2013-01-23
KR101386347B1 (ko) 2014-04-16
JP2013523122A (ja) 2013-06-17
US20110240045A1 (en) 2011-10-06
EP2552262A1 (en) 2013-02-06
SG184269A1 (en) 2012-11-29
CA2793298C (en) 2014-04-29
RU2511836C1 (ru) 2014-04-10
JP5543661B2 (ja) 2014-07-09
WO2011123221A1 (en) 2011-10-06
CN102892317B (zh) 2015-11-25
UA103728C2 (uk) 2013-11-11
EP2552262A4 (en) 2014-02-19
KR20120135425A (ko) 2012-12-13
CA2793298A1 (en) 2011-10-06
MY152469A (en) 2014-10-15
US8327856B2 (en) 2012-12-11

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 6A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]