Polymeric materials
AssigneeVictrex Manufacturing Limited
InventorAlan Wood
Life of this patent
Estimating the term…
Abstract
A component comprises a first part and a second part, wherein said second part is in contact with said first part, wherein: (i) said first part comprises a first polymer which is semi-crystalline and includes phenylene moieties, carbonyl moieties and ether moieties; (ii) said second part comprises a second polymer which is semi-crystalline and includes phenylene moieties, carbonyl moieties and ether moieties; (iii) the melting temperature (Tm) of the second polymer is less than the melting temperature (Tm) of the first polymer. In a preferred embodiment, said first polymer is polyetheretherketone and said second polymer is a copolymer having a repeat unit of formula VIII and a repeat unit of formula IX.
Claims19
A component comprising a first part and a second part, wherein said second part is in contact with said first part, wherein:
- (i) said first part comprises a first polymer which is semi-crystalline and includes phenylene moieties, carbonyl moieties and ether moieties;
- (ii) said second part comprises a second polymer which is semi-crystalline and includes phenylene moieties, carbonyl moieties and ether moieties and wherein said second polymer includes a repeat unit of formula
- —O-Ph-O-Ph-CO-Ph- VI
- and a repeat unit of formula
- —O-Ph-Ph-O-Ph-CO-Ph- VII
- wherein Ph represents a phenylene moiety;
- (iii) the melting temperature (Tm) of the second polymer is less than the melting temperature (Tm) of the first polymer;
- and
- wherein said first part is overmoulded onto said second part such that said first part is at least partially around said second part.
A method of making a component comprising a first part and a second part, wherein said second part is in contact with said first part, wherein:
- (i) said first part comprises a first polymer which is semi-crystalline and includes phenylene moieties, carbonyl moieties and ether moieties;
- (ii) said second part comprises a second polymer which is semi-crystalline and includes phenylene moieties, carbonyl moieties and ether moieties and wherein said second polymer includes a repeat unit of formula
- —O-Ph-O-Ph-CO-Ph- VI
- and a repeat unit of formula
- —O-Ph-Ph-O-Ph-CO-Ph- VII
- wherein Ph represents a phenylene moiety;
- (iii) the melting temperature (Tm) of the second polymer is less than the melting temperature (Tm) of the first polymer;
- and
- wherein said first part is overmoulded onto said second part, the method comprising:
- (a) selecting said second part comprising said second polymer;
- (b) selecting said first part comprising said first polymer or a precursor of said first part which comprises said first polymer;
- and
- (c) overmoulding said first part or said precursor onto said second part.
Dependencies are inferred from the claim text.