摘要:
A dye sheet for thermal transfer printing comprising a substrate having on one surface thereof a dye coat which comprises a dye capable of thermal transfer dispersed in a polymer binder, characterized in that R-1 is a minimum where R=K.sub.sl /K.sub.tt, wherein K.sub.sl =AD.sub.sl /AP.sub.sl where AD.sub.sl is the absorption due to the dye and AP.sub.sl is the absorption due to the polymer over the surface layer; K.sub.tt =AD.sub.tt /AP.sub.tt where AD.sub.tt is the absorption due to the dye and AP.sub.tt is the absorption due to the polymer for the total thickness of the coating; and the values for AD.sub.sl, AP.sub.sl, AD.sub.tt and AP.sub.tt being measured by Attenuated Total Reflection Spectroscopy.
摘要:
The present invention describes a process for the making of a copolymer of the general formula (I) wherein A is a residue of at least one (meth)acrylate monomeric species, B is a residue of at least one monomeric species copolymerizable with A, R is a (meth)acrylate functionalized pendant ester group, X1 and X2 are terminal groups which may be the same or different, n and p are both at least one and are chosen such that the copolymer has a number average molecular weight of more than 2000.
摘要:
A novel material, forming supramolecular structures below its transition temperature, which contains at least one C═O and/or C═S group and at least one N—H, O—H and/or S—H group and wherein the material has the structure A(-X—B)n (1) wherein A, X, B and n are defined. Also a process for preparation of the material and uses thereof.
摘要:
Reactive hot melt adhesives with long open time and/or high green strength prepared by using an acrylic polymer component containing a high molecular weight acrylic polymer.
摘要:
The invention provides an isocyanate free UV curable hot melt composition which may be hardened upon exposure to UV radiation to provide a protective coating. The coating is particularly useful in wood-working and furniture applications.
摘要:
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.
摘要翻译:一种制备(甲基)丙烯酸酯官能化聚合物的方法,包括以下步骤:将单官能乙烯基单体与0.3-100%w / w(基于单官能单体)多官能乙烯基单体和0.0001-50%w / w 的链转移剂,使所述混合物反应形成聚合物,并在99%转化之前终止聚合反应。 所得聚合物可用作表面涂料和油墨的组分,如模塑树脂或可固化化合物,例如, 可固化模塑树脂或光致抗蚀剂。
摘要:
The invention relates to novel material, forming supramolecular structures below its transition temperature, which contains at least one C=O and/or C=S group and at least one N—H, O—H and/or S—H group and wherein the material has the structure A(—X—B)n (1) wherein A is a cyclic, aromatic and/or aliphatic group, n being a number of 1 to 4, —X—B is, if n is 2, the same or different, and if n is 3 or 4, the same, partly the same or different and has one of the structures (2) to (4) NH—C(Y)—Y—B (2) —NH—C(Y)—NR—B (3) —Y—C(Y)—NR—B (4) with Y being an Oxygen and/or Sulfur atom, B being an organic group with at least one heteroatom, where the heteroatom is bound to at least two carbon atoms when B is linear or cyclic, and where the heteroatom is bound to at least one carbon atom when B is branched, and R being a Hydrogen atom, a cyclic, aromatic and/or aliphatic group or another B group which is the same or different. The material can be made by reacting at least one isocyanate and/or thioisocyanate with at least one amine, alcohol and/or thiol. Typically, the material is used first below its transition temperature, followed by increasing the temperature to around or above the transition temperature, carrying out a process step and subsequently decrease the temperature below the transition temperature.
摘要:
The present invention describes a process for the making of a copolymer of the general formula (I) wherein A is a residue of at least one (meth)acrylate monomeric species, B is a residue of at least one monomeric species copolymerizable with A, R is a (meth)acrylate functionalized pendant ester group, X1 and X2 are terminal groups which may be the same or different, n and p are both at least one and are chosen such that the copolymer has a number average molecular weight of more than 2000.
摘要:
A thermal transfer printing dye-sheet which comprises a substrate having on one side, a dye coat comprising a binder and a thermally transferable dye wherein the binder comprises a polymer, at least 10% of the monomeric units of the polymer being derived from parahydroxystyrene, the phenyl group of which may or may not be further substituted.
摘要:
The invention provides an isocyanate free UV curable hot melt composition which may be hardened upon exposure to UV radiation to provide a protective coating. The coating is particularly useful in wood-working and furniture applications.