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US 6,713,584 B1Granted
Polymer composition
AssigneeLucite International UK Limited
InventorsMichael Stephen Chisholm, Andrew Trevithick Slark
Life of this patent
Estimating the term…
Abstract
A method of preparing a (meth)acrylate functionalised polymer comprising the steps of mixing together a monofunctional vinylic monomer with from 0.3-100% w/w (based on monofunctional monomer) of a polyfunctional vinylic monomer and from 0.0001-50% w/w of a chain transfer agent, reacting said mixture to form a polymer and terminating the polymerisation reaction before 99% conversion. The resulting polymers are useful as components of surface coatings and inks, as moulding resins or in curable compounds, e.g. curable moulding resins or photoresists.
Claims19
A method of preparing a polymer which includes at least one polymerisable double bond which comprises:
- (i) mixing together a monofunctional monomer having one polymerisable double bond per molecule with 0.3-100% w/w (of the weight of the monofunctional monomer) of a polyfunctional monomer having ea least two polymerisable double bonds per molecule and from 0.0001-50% w/w (of the weight of the monofunctional monomer) of a chain transfer agent and optionally a free-radical polymerisation initiator, said monofunctional monomer comprising at least one of methyl (meth)acrylate, n-butyl (meth)acrylate, iso-butyl (meth)acrylate, t-butyl (meth)acrylate or methacrylic acid and said polyfunctional monomer comprising at least one of bi-functional (meth)acrylates, tri-functional (meth)acrylates, tetra-functional (meth)acrylates, penta-functional (meth)acrylates, hexa-functional (meth)acrylates, oligomers or polymers having at least two polymerisable (meth)acrylate groups per molecule, and mixtures thereof
- (ii) reacting said mixture to form a polymer, and
- (iii) terminating the polymerisation reaction when 80 to 98% of the polymerisable double bonds present in the mixture have reacted to form polymer.
A method of preparing a polymer which includes at least one polymerisable double bond which comprises:
- (i) mixing together a monofunctional monomer having one polymerisable double bond per molecule with 0.3-100% w/w (of the weight of the monofunctional monomer) of a polyfunctional monomer having at least two polymerisable double bonds per molecule and from 0.0001-50% w/w (of the weight of the monofunctional monomer) of a chain transfer agent and optionally a free-radical polymerisation initiator, said monofunctional monomer comprising at least one of methyl (meth)acrylate, n-butyl (meth)acrylate, iso-butyl (meth)acrylate, t-butyl (meth)acrylate or methacrylic acid and said polyfunctional monomer comprising at least one of bi-functional (meth)acrylates, tri-functional (meth)acrylates, tetra-functional (meth)acrylates, penta-functional (meth)acrylates, hexa-functional (meth)acrylates, oligomers or polymers having at least two polymerisable (meth)acrylate groups per molecule, and mixtures thereof
- (ii) reacting said mixture to form a polymer, and
- (iii) adding polymerisation inhibitor to the reaction mixture to terminate the polymerisation reaction when 80 to 98% of the polymerisable double bonds present in the mixture have reacted to form polymer.
A method of preparing a polymer which includes at least one polymerisable double bond which comprises:
- (i) mixing together a monofunctional monomer having one polymerisable double bond per molecule with 0.3-100% w/w (of the weight of the monofunctional monomer) of a polyfunctional monomer having at least two polymerisable double bonds per molecule and from 0.0001-50% w/w (of the weight of the monofunctional monomer) of a chain transfer agent and optionally a free-radical polymerisation initiator, said monofunctional monomer comprising at least one of methyl (meth)acrylate, n-butyl (meth)acrylate, iso-butyl (meth)acrylate, t-butyl (meth)acrylate or methacrylic acid and said polyfunctional monomer comprising at least one of bi-functional (meth)acrylates, tri-functional (meth)acrylates, tetra-functional (meth)acrylates, penta-functional (meth)acrylates, hexa-functional (meth)acrylates, oligomers or polymers having at least two polymerisable (meth)acrylate groups per molecule, and mixtures thereof
- (ii) reacting said mixture to form a polymer, and
- (iii) cooling the reaction mixture to terminate the polymerisation reaction when 80 to 98% of the polymerisable double bonds present in the mixture have reacted to form polymer.
A method of preparing a polymer which includes at least one polymerisable double bond which comprises:
- (i) mixing together a monofunctional monomer having one polymerisable double bond per molecule with 0.3-100% w/w (of the weight of the monofunctional monomer) of a polyfunctional monomer having at least two polymerisable double bonds per molecule and from 0.0001-50% w/w (of the weight of the monofunctional monomer) of a chain transfer agent and a free-radical polymerisation initiator, said monofunctional monomer comprising at least one of methyl (meth)acrylate, n-butyl (meth)acrylate, iso-butyl (meth)acrylate, t-butyl (meth)acrylate or methacrylic acid and said polyfunctional monomer comprising at least one of bi-functional (meth)acrylates, tri-functional (meth)acrylates, tetra-functional (meth)acrylates, penta-functional (meth)acrylates, hexa-functional (meth)acrylates, oligomers or polymers having at least two polymerisable (meth)acrylate groups per molecule, and mixtures thereof and
- (ii) reacting said mixture to form a polymer, and
- wherein the type and concentration of the polymerisation initiator, polymerisation temperature and polymerisation time are selected such that the availability of free radicals to initiate polymerisation is insufficient to convert all polymerisable groups in the monomer mixture to polymer, whereby the polymerisation reaction is terminated when 80 to 98% of the polymerisable double bonds present in the mixture have reacted to form polymer.
Dependencies are inferred from the claim text.