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CA2163569A1 - Carbonate de calcium rhomboedrique et methode de vieillissement accelerepour le produire - Google Patents

Carbonate de calcium rhomboedrique et methode de vieillissement accelerepour le produire

Info

Publication number
CA2163569A1
CA2163569A1 CA 2163569 CA2163569A CA2163569A1 CA 2163569 A1 CA2163569 A1 CA 2163569A1 CA 2163569 CA2163569 CA 2163569 CA 2163569 A CA2163569 A CA 2163569A CA 2163569 A1 CA2163569 A1 CA 2163569A1
Authority
CA
Canada
Prior art keywords
calcium carbonate
papermaking
aging process
accelerated heat
production
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
CA 2163569
Other languages
English (en)
Other versions
CA2163569C (fr
Inventor
Charles J. Kunesh
June D. Passaretti
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.)
Minerals Technologies Inc
Original Assignee
Pfizer Corp SRL
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
Priority claimed from US07/493,075 external-priority patent/US5269818A/en
Application filed by Pfizer Corp SRL filed Critical Pfizer Corp SRL
Publication of CA2163569A1 publication Critical patent/CA2163569A1/fr
Application granted granted Critical
Publication of CA2163569C publication Critical patent/CA2163569C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Paper (AREA)
CA002163569A 1990-03-13 1991-03-11 Carbonate de calcium rhomboedrique et methode de vieillissement accelerepour le produire Expired - Fee Related CA2163569C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/493,075 1990-03-13
US07/493,075 US5269818A (en) 1990-03-13 1990-03-13 Rhombohedral calcium carbonate and accelerated heat-aging process for the production thereof
CA002038009A CA2038009C (fr) 1990-03-13 1991-03-11 Carbonate de calcium rhomboedrique et methode de vieillissement thermique accelere pour le preparer

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002038009A Division CA2038009C (fr) 1990-03-13 1991-03-11 Carbonate de calcium rhomboedrique et methode de vieillissement thermique accelere pour le preparer

Publications (2)

Publication Number Publication Date
CA2163569A1 true CA2163569A1 (fr) 1991-09-14
CA2163569C CA2163569C (fr) 1997-12-09

Family

ID=25674508

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002163569A Expired - Fee Related CA2163569C (fr) 1990-03-13 1991-03-11 Carbonate de calcium rhomboedrique et methode de vieillissement accelerepour le produire

Country Status (1)

Country Link
CA (1) CA2163569C (fr)

Also Published As

Publication number Publication date
CA2163569C (fr) 1997-12-09

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