Invention Grant
US07300974B2 Rheology regulators such as ground natural calcium carbonates optionally treated with a fatty acid or salt and their use
有权
流变调节剂，例如任选用脂肪酸或盐处理的磨碎的天然碳酸钙及其用途
- Patent Title: Rheology regulators such as ground natural calcium carbonates optionally treated with a fatty acid or salt and their use
- Patent Title (中): 流变调节剂，例如任选用脂肪酸或盐处理的磨碎的天然碳酸钙及其用途
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Application No.: US10781686Application Date: 2004-02-20
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Publication No.: US07300974B2Publication Date: 2007-11-27
- Inventor: Henny Loman, deceased
- Applicant: Pierre Blanchard , Detlef Gysau , Patrick Trouve , Marion Loman-Oonk, legal representative
- Applicant Address: CH Oftringen
- Assignee: OMYA AG
- Current Assignee: OMYA AG
- Current Assignee Address: CH Oftringen
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- Priority: FR9812714 19981007
- Main IPC: C08G77/04
- IPC: C08G77/04 ; C08J3/00 ; C08K3/26 ; C08L75/00 ; C08L83/00
Abstract:
The invention relates to the selection of a natural calcium carbonate crushed to a high degree of fineness, possibly treated with one or more fatty acids or one or more of their salts or mixtures thereof, and its use as a rheology regulator for polymeric compositions.The specific surface area is 14 to 30 m2/g measured according to the BET method to ISO 4652, and the oil absorption is greater than 16 measured according to ISO 787-V (Rub-out method).The conditions of mixing of the constituents and manufacture are improved, as well as the properties of the final product.
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