EP0585038B1 - Alkali containing silica solution - Google Patents

Alkali containing silica solution Download PDF

Info

Publication number
EP0585038B1
EP0585038B1 EP93306496A EP93306496A EP0585038B1 EP 0585038 B1 EP0585038 B1 EP 0585038B1 EP 93306496 A EP93306496 A EP 93306496A EP 93306496 A EP93306496 A EP 93306496A EP 0585038 B1 EP0585038 B1 EP 0585038B1
Authority
EP
European Patent Office
Prior art keywords
weight
solution
sodium
containing silica
alkali containing
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.)
Expired - Lifetime
Application number
EP93306496A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0585038A1 (en
Inventor
Derek Aldcroft
Charlotte Ruth Owen
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.)
Ineos Silicas Ltd
Original Assignee
Joseph Crosfield and Sons Ltd
Crosfield 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
Application filed by Joseph Crosfield and Sons Ltd, Crosfield Ltd filed Critical Joseph Crosfield and Sons Ltd
Priority to EP93306496A priority Critical patent/EP0585038B1/en
Publication of EP0585038A1 publication Critical patent/EP0585038A1/en
Application granted granted Critical
Publication of EP0585038B1 publication Critical patent/EP0585038B1/en
Priority to GR20000402124T priority patent/GR3034433T3/el
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/08Silicates
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/39Organic or inorganic per-compounds
    • C11D3/3902Organic or inorganic per-compounds combined with specific additives
    • C11D3/3937Stabilising agents
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/39Organic or inorganic per-compounds
    • C11D3/3902Organic or inorganic per-compounds combined with specific additives
    • C11D3/3937Stabilising agents
    • C11D3/394Organic compounds
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02Inorganic compounds
    • C11D7/04Water-soluble compounds
    • C11D7/10Salts
    • C11D7/14Silicates
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22Organic compounds
    • C11D7/26Organic compounds containing oxygen
    • C11D7/265Carboxylic acids or salts thereof
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22Organic compounds
    • C11D7/32Organic compounds containing nitrogen
    • C11D7/3245Aminoacids
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22Organic compounds
    • C11D7/36Organic compounds containing phosphorus
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06LDRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/10Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
    • D06L4/12Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen combined with specific additives

Definitions

  • the invention relates to alkali containing silica solution containing organic calcium sequestrant, to a bleaching bath formulation containing said silica solution and to a process for the alkaline hydrogen peroxide bleaching of textiles.
  • Silicates are well characterised in the literature, for example "The Chemistry of Silica” by R.K. Iler (published by Wiley Interscience 1979) and they have many forms depending on the cation associated with the silicate species, the ratio of metal oxide of this cation to the silicon dioxide content of the solution, and the total solids content.
  • Silicate liquors find uses as sealants adhesives, protective coatings, binders and also stabilisation system in the hydrogen peroxide bleaching of textiles, for example cotton and polyester/cotton (see “The Encyclopedia of organic Chemistry", Kirk Othmer, 3rd Edition, Supplement Vol.3, 1979, pages 877 and 949).
  • silicate containing either potassium or sodium oxide is recognised as being the best stabilising system for alkaline hydrogen peroxide bleaching of cotton and polyester/cotton (white goods), i.e. the reaction of the soluble silicate to prolong the active life of the hydrogen peroxide in the bleaching bath, the drawbacks of using silicate are well documented.
  • the whiteness values have been measured on the treated cloth, after bleaching for 20 minutes at 100°C in a Werner Mathis steamer. Listed below in Table 1 are the whiteness values obtained for the various silicate additions, the measurements being determined on an Elrepho spectrophotometer.
  • the blends have been prepared by adding the candidate neutralised organic acid calcium sequestrant (40% solution as its sodium salt) to the stirred alkali containing silica solution. After aeration has settled, caused by the mixing action of the stirrer, the blends are transferred to a glass sample bottle and sealed to prevent moisture escaping. The blends have been stored for up to a period of 3-months at ambient temperature. The observations recorded in Table II are on the blends after standing for one month.
  • the CCPL's for the range of modified alkali containing silica solutions containing 4% of the sequestrant in the form of its sodium salt, in the ratio range 1.6 to 2.0 are given in Table IV.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Detergent Compositions (AREA)
  • Silicon Compounds (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Saccharide Compounds (AREA)
  • Cosmetics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
EP93306496A 1992-08-28 1993-08-18 Alkali containing silica solution Expired - Lifetime EP0585038B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP93306496A EP0585038B1 (en) 1992-08-28 1993-08-18 Alkali containing silica solution
GR20000402124T GR3034433T3 (en) 1992-08-28 2000-09-18 Antifoaming agents.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP92307886 1992-08-28
EP92307886 1992-08-28
EP93306496A EP0585038B1 (en) 1992-08-28 1993-08-18 Alkali containing silica solution

Publications (2)

Publication Number Publication Date
EP0585038A1 EP0585038A1 (en) 1994-03-02
EP0585038B1 true EP0585038B1 (en) 2000-07-26

Family

ID=8211472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93306496A Expired - Lifetime EP0585038B1 (en) 1992-08-28 1993-08-18 Alkali containing silica solution

Country Status (9)

Country Link
EP (1) EP0585038B1 (da)
AT (1) ATE194998T1 (da)
BR (1) BR9303474A (da)
DE (1) DE69329089T2 (da)
DK (1) DK0585038T3 (da)
ES (1) ES2150436T3 (da)
GR (1) GR3034433T3 (da)
PT (1) PT585038E (da)
ZA (1) ZA935690B (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101545198B (zh) * 2009-04-30 2011-02-09 祝洪哲 用于纤维素纤维织物漂白的纳米材料组合物

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0750661B1 (en) * 1994-03-14 2003-02-26 The Procter & Gamble Company Granular bleaching compositions
DE4416208A1 (de) * 1994-05-07 1995-11-09 Henkel Kgaa Verwendung von phosphorfreien, wasserlöslichen Polymeren und Polyhydroxymono- oder dicarboxylaten zur Stabilisierung von Erdalkalisilikaten bei der Textilbleiche
US7044985B2 (en) * 1999-12-21 2006-05-16 Clariant Finance (Bvi) Limited Process for pre-treating cellulosic fibers and cellulosic fiber blends

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2838459A (en) * 1955-02-01 1958-06-10 Pennsalt Chemicals Corp Stabilization of solutions containing peroxygen compounds
GB923897A (en) * 1959-08-28 1963-04-18 Laporte Chemical Improvements in or relating to the bleaching of cellulosic fibres
US3150918A (en) * 1962-03-29 1964-09-29 Pittsburgh Plate Glass Co Method of bleaching cotton piece goods
GB1123071A (en) * 1964-11-12 1968-08-14 Bowmans Chemicals Ltd Improvements in or relating to the treatment of natural or synthetic fibres
US3449254A (en) * 1966-06-14 1969-06-10 Allied Chem Borax-sodium silicate stabilizers for peroxide bleaching
CA965327A (en) * 1970-09-24 1975-04-01 The Procter And Gamble Company Liquid hard surface cleanser
US4725281A (en) * 1985-07-19 1988-02-16 Ciba-Geigy Corporation Aqueous alkaline, silicate-containing composition and the use thereof for bleaching cellulosic fiber materials in the presence of per compounds
FR2643093B1 (fr) * 1989-02-15 1991-08-16 Protex Manuf Prod Chimiq Procedes ameliores de blanchiment oxydant de fibres cellulosiques
EP0407626A1 (de) * 1989-07-10 1991-01-16 Henkel Kommanditgesellschaft auf Aktien Phosphatfreies, flüssiges Wasch- und Reinigungsmittel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101545198B (zh) * 2009-04-30 2011-02-09 祝洪哲 用于纤维素纤维织物漂白的纳米材料组合物

Also Published As

Publication number Publication date
ZA935690B (en) 1995-02-06
ES2150436T3 (es) 2000-12-01
GR3034433T3 (en) 2000-12-29
EP0585038A1 (en) 1994-03-02
ATE194998T1 (de) 2000-08-15
DE69329089T2 (de) 2000-12-21
DK0585038T3 (da) 2000-12-18
DE69329089D1 (de) 2000-08-31
PT585038E (pt) 2000-11-30
BR9303474A (pt) 1994-03-15

Similar Documents

Publication Publication Date Title
KR900005961B1 (ko) 액체 완충 조성물 및 이를 사용한 pH조절 방법
US5160656A (en) Aqueous liquid bleaching detergents which are stable during storage and washing process
US5464563A (en) Bleaching composition
US3811833A (en) Stabilized hydrogen peroxide compositions containing ammonium ions,and process for bleaching therewith
EP0736049B1 (de) Copolymerisate ungesättigter carbonsäuren, verfahren zur herstellung und ihre verwendung
EP0890635A2 (en) Compositions based on percarboxylic acids as cleaning and hygienizing agents
CA2003519C (en) A paste-form low-foaming non-phosphate detergent
US3979312A (en) Detergent composition containing novel bleaching agent
US3061550A (en) Textile bleaching composition
EP0585038B1 (en) Alkali containing silica solution
US5616280A (en) Bleaching composition
US2938764A (en) Highly alkaline dichlorodimethylhydantoin bleaching solutions and methods
EP0867502B1 (en) Bleaching compositions
US4384970A (en) Stabilizing compositions for peroxide products
EP0090310B1 (de) Mittel zum Waschen und färbungsschonenden Bleichen von Textilien
SK19899A3 (en) Liquid bleaching composition, solid bleaching composition, use of a component having the ability to prevent the precipitation of the salts of buffering component and method of bleaching fabric
US6313082B1 (en) Bleaching compositions
US7156882B2 (en) Method for bleaching textile fibers
US4392975A (en) Activating composition for bleaching with peroxide products
US5069808A (en) Washing or detergent composition containing lactobionic acid or lactobionic acid salts
NO136417B (da)
JPH04332796A (ja) 漂白剤及び漂白洗浄剤組成物
KR100240370B1 (ko) 직물 표백 방법
DE69130137T2 (de) Verfahren zur Verhinderung der Gewebeinkrustation
US5843191A (en) Process for bleaching fabrics

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE

17P Request for examination filed

Effective date: 19940708

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CROSFIELD LIMITED

17Q First examination report despatched

Effective date: 19970219

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE

REF Corresponds to:

Ref document number: 194998

Country of ref document: AT

Date of ref document: 20000815

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BOVARD AG PATENTANWAELTE

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69329089

Country of ref document: DE

Date of ref document: 20000831

ET Fr: translation filed
ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20000810

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2150436

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20020710

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IE

Payment date: 20020715

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20020717

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20020726

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040229

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20040229

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

NLT1 Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1

Owner name: INEOS SILICAS LIMITED

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20080811

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20080726

Year of fee payment: 16

Ref country code: FR

Payment date: 20080714

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080722

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20080716

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 20080724

Year of fee payment: 16

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090818

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100430

REG Reference to a national code

Ref country code: NL

Ref legal event code: SD

Effective date: 20100707

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090831

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20090819

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100303

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090819

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090819

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110823

Year of fee payment: 19

Ref country code: AT

Payment date: 20110812

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 69329089

Country of ref document: DE

Representative=s name: PFENNING MEINIG & PARTNER GBR, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20110825

Year of fee payment: 19

Ref country code: BE

Payment date: 20110811

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 69329089

Country of ref document: DE

Representative=s name: PFENNING MEINIG & PARTNER GBR, DE

Effective date: 20111214

Ref country code: DE

Ref legal event code: R081

Ref document number: 69329089

Country of ref document: DE

Owner name: PQ SILICAS UK LTD., GB

Free format text: FORMER OWNER: INEOS SILICAS LTD., WARRINGTON, GB

Effective date: 20111214

BERE Be: lapsed

Owner name: PQ SILICAS UK LTD

Effective date: 20120831

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20130301

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 194998

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130301

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69329089

Country of ref document: DE

Effective date: 20130301