Abstract:
The fluid compositions of the present invention include an glycol component that includes a mixture of glycols according the formula: Wherein, typically, at least one of R2, R3, R4 and R5 is an alkyl group. The physical properties of the compositions include a high dry equilibrium reflux boiling point (ERBP), a high wet equilibrium reflux boiling point (WERBP), a low temperature viscosity or any combination thereof. These compositions are particularly useful because their physical properties (e.g., WERBP, ERBP, and low temperature viscosity) meet or exceed the provisions for DOT 3, 4, or 5 brake fluids.
Abstract:
The functional fluids of the present invention comprise about 50 parts by weight to about 99 parts by weight of a glycol component and about 0.3 parts by weight to about 10 parts by weight of one or more additives including a phosphate content. Desirably, in one aspect of this invention, the functional fluid composition exhibits an average scar width according to ASTM D 2670 (100 Ib break-in for 1 min, 200 Ib load for 30 minutes) that ranges from about 0.05 mm to about 0.45 mm, an average tooth count according to ASTM D 2670 (100 Ib break-in for 1 min, 200 Ib load for 30 minutes) of less than about 15, or both.
Abstract translation:本发明的功能性流体包含约50重量份至约99重量份的二醇组分和约0.3重量份至约10重量份的一种或多种包括磷酸盐含量的添加剂。 理想地,在本发明的一个方面,功能性流体组合物根据ASTM D 2670(100磅断裂1分钟,200磅载荷30分钟)显示平均瘢痕宽度,其范围为约0.05mm至约0.45mm ,根据ASTM D 2670(100磅断裂1分钟,200磅载荷30分钟)的平均牙齿数小于约15,或两者均匀。
Abstract:
The fluid compositions of the present invention include an glycol component that includes a mixture of glycols according the formula: Wherein, typically, at least one of R 2 , R 3 , R 4 and R 5 is an alkyl group. The physical properties of the compositions include a high dry equilibrium reflux boiling point (ERBP), a high wet equilibrium reflux boiling point (WERBP), a low temperature viscosity or any combination thereof. These compositions are particularly useful because their physical properties (e.g., WERBP, ERBP, and low temperature viscosity) meet or exceed the provisions for DOT 3, 4, or 5 brake fluids.