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US 4,626,365 AGranted
Polytetrafluorethylene-containing coating composition for sliding parts
AssigneeDaido Metal Company Ltd.
InventorSanae Mori
Life of this patent
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Abstract
A composition for sliding parts, comprising 0.1 to 50 vol % in total of at least one selected from the group (A) consisting of FEP, PFA, ETFE, PVDF, PCTFE and EPE; 0.1 to 35 vol % of compound metal oxide; and the balance PTFE, the total content of components other than PTFE ranging between 0.2 and 70 vol %. Such composition may further contain at least one of metal oxide, metallic lubricant, metal sulfide, metal fluoride, carbonic solid lubricant, fibrous material, ceramics.
Claims9
A composition for sliding parts, selected from the group consisting of:
- (a) a composition for sliding parts consisting of:
- 0.1 to 50 vol % in total of at least one selected from the group (A) consisting of tetrafluoroethylenehexafluoropropylene copolymer resin (FEP), tetrafluoroethylene-perfluoroalkylvinyl ether copolymer resin (PFA), tetrafluoroethylene-ethylene copolymer resin (ETFE), fluoroethylene propylene ether resin (EPE);
- 0.1 to 35 vol % of a compound metal oxide;
- and
- the balance substantially polytetrafluoroethylene (PTFE), the total content of components other than PTFE ranging between 0.2 and 70 vol %;
- (b) a composition for sliding parts consisting of:
- 0.1 to 50 vol % in total of at least one selected from the group (A) consisting of FEP, PFA, ETFE, and EPE;
- a compound metal oxide;
- a metal oxide;
- the total content of both the compound metal oxide and the metal oxide ranging between 0.1 to 35 vol %;
- and
- the balance substantially PTFE, the total content of components other than PTFE ranging between 0.2 and 70 vol %;
- (c) a composition for sliding parts consisting of:
- 0. 1 to 50 vol % in total of at least one selected from the group (A) consisting of FEP, PFA, ETFE, and EPE;
- a compound metal oxide;
- at least one selected from a group (B) consisting of:
- a metallic lubricant;
- a metal sulfide;
- a metal fluoride;
- a carbonic solid;
- a fibrous material such as carbon fiber;
- and ceramics
- the total content of the compound metal oxide and at least the one selected from the group (B) ranging between 0.1 to 35 vol %;
- and
- the balance substantially PTFE, the total content of components other than PTFE ranging between 0.2 and 70 vol %;
- and
- (d) a composition for sliding parts consisting of:
- 0.1 to 50 vol % in total of at least one selected from the group (A) consisting of FEP, PFA, ETFE, and EPE;
- a compound metal oxide;
- a metal oxide;
- at least one selected from a group (B) consisting of:
- a metallic lubricant;
- metal sulfide;
- a metal fluoride;
- a carbonic solid lubricant;
- a fibrous material;
- and ceramics
- the total content of the compound metal oxide, the metal oxide and the at least one selected from the group B ranging between 0.1 to 35 vol %;
- and
- the balance substantially PTFE, the total content of components other than PTFE ranging between 0.2 and 70 vol %.
37 more elements
Dependencies are inferred from the claim text.