摘要:
A 100% solids laminating adhesive for flexible packaging with an improved range of adhesion and bond strength to various substrates along with reduced odor during application and improved ink compatibility and ink bonding. The adhesive is an epoxy-acrylate/amine formulation. Methods of application of the inventive adhesive are also disclosed.
摘要:
Disclosed are thermally-stable, anthraquinone colorant compounds (dyes) which contain one or more vinyl groups which render the compounds copolymerizable with reactive vinyl monomers to produce colored, polymeric compositions such as acrylate and methacrylate polymeric materials. The compounds possess good fastness (stability) to ultraviolet (UV) light, good solubility in vinyl monomers, good color strength and excellent thermal stability. Also disclosed are (1) coating composition comprising (i) one or more polymerizable vinyl compounds, (ii) one or more of the dye compounds described above, and (iii) a photoinitiator and (2) polymeric materials, i.e., polymers derived from one or more acrylic acid esters, one or more methacrylic acid esters, one or more other polymerizable vinyl compounds or mixtures of any two or more thereof, having copolymerized therein one or more of the anthraquinone colorant compounds.
摘要:
A method of preparing a capped poly(arylene ether) resin includes reacting a capping agent with a blend of two or more poly(arylene ether) resins having different intrinsic viscosities. Cured compositions prepared from these capped poly(arylene ether) resins exhibit improved balances of stiffness, toughness, and dielectric properties compared to compositions with two or more separately capped and isolated poly(arylene ether) resins.
摘要:
The present invention provides a composition comprising a first polymer and a second polymer cross-linked by the association of functional groups attached as side chains to the polymers.
摘要:
Biodegradable biocompatible hydrogels based on poly(vinyl alcohol) and methods for their preparation. The methods for preparation of the hydrogels involve the use of prepolymers. The prepolymers have a PVA backbone and pendant chains that include a polymerizable group. In one embodiment, the pendant chains also include a biodegradable region. In another embodiment, biodegradable regions are incorporated into the hydrogel during its formation.
摘要:
A process for preparing an acrylic-modified alkyd resin comprising the steps of: d) preparing a sulfonated alkyd resin product; e) preparing an acrylated fatty acid product; and f) reacting the product of step a) and the product of step b) under appropriate polymerisation conditions, and for preparing a waterbome composition on the basis thereof as well as products obtainable by those processes.
摘要:
Composites which include a polymer matrix having natural free volume therein and an inorganic or organic material disposed in the natural free volume of the polymer matrix are disclosed. In addition, methods for making a composite are described. A polymer matrix having free volume therein is provided. The free volume is evacuated, and inorganic or organic molecules are infused into the evacuated free volume of the polymer matrix. The inorganic or organic molecules can then be polymerized under conditions effective to cause the polymerized inorganic or organic molecules to assemble into nanoparticles or other types of macromolecular networks. Alternatively, where the polymer matrix contains a functionality, the inorganic or organic molecules can be treated under conditions effective to cause the inorganic or organic molecules to interact with the polymer matrix's functionality. Use of the disclosed composites as photoradiation shields and filters, electromagnetic radiation shields and filters, antistatic layers, heterogeneous catalysts, conducting electrodes, materials having flame and heat retardant properties, components in the construction of electrolytic cells, fuel cells, and optoelectronic devices, and antifouling coatings is also described.
摘要:
The present invention is directed to polymeric-prodrug transport forms of the formula: wherein: E1-4 are independently selected from the group consisting of hydrogen, C1-6 alkyls, C3-12 branched alkyls, C3-8 cycloalkyls, C1-6 substituted alkyls, C3-8 substituted cycloalkyls, aryls, substituted aryls, aralkyls, C1-6 heteroalkyls, substituted C1-6 heteroalkyls, C1-6 alkoxy, phenoxy, C1-6 heteroalkoxy, and at least one of E1-4 includes a B moiety, wherein B is a leaving group, OH, a residue of a hydroxyl-or amino-containing moiety or wherein J1 is the same as J, or another member of the group defining J and E5 is the same as E1-4, or another member of the group defining E1-4, Y1-2 are independently O, S or NR9; M is a heteroatom selected from either X or Q; wherein X is an electron withdrawing group and Q is a moiety containing a free electron pair positioned three to six atoms from C(═Y2); R2-5 and R7-9 are independently selected from the group consisting of hydrogen, C1-6 alkyls, C3-12 branched alkyls, C3-8 cycloalkyls, C1-6 substituted alkyls, C3-8 substituted cycloalkyls, aryls, substituted aryls, aralkyls, C1-6 heteroalkyls, substituted C1-6 heteroalkyls, C1-6 alkoxy, phenoxy and C1-6 heteroakoxy; (m1) and (m2) are independently zero or one; (n1), (n2), (p1), (p2) and (q) are independently zero or a positive integer, Z is an electron withdrawing group; and R1 is a polymeric residue. which is optionally capped with a moiety of the formula:
摘要:
A method for making modified poly(ethylene oxide) by graft polymerizing thereto organic monomers containing a trialkoxy silane functional group or a moiety that reacts with water to form a silanol group, such as methacryloxypropyl trimethoxy silane, onto the poly(ethylene oxide) is disclosed. The graft polymerization is accomplished by mixing the poly(ethylene oxide), the silane-containing monomer(s) and an initiator and applying heat. Preferably, the method is a reactive-extrusion process. The resulting modified poly(ethylene oxide) has improved water absorption characteristics and melt processabilities and may be used to make thermally processed articles, such as fibers, films and foams, that have improved properties over articles similarly processed from unmodified poly(ethylene oxide).
摘要:
The present invention relates to a graft polymer having a backbone moiety and at least one moiety grafted onto the backbone moiety where the backbone and grafted moieties are a hydrophobe and an amine or amide. The graft copolymer may have either a hydrophobic backbone or a mixed amine/hydrophobic backbone with a grafted amine or amide moiety; or an amine functional backbone with a grafted hydrophobic moiety. The backbone may be polymeric or non-polymeric. The graft copolymer may be used to deliver an active ingredient onto a substrate. The active ingredient may be associated, coated or encapsulated by the graft copolymer. The graft copolymer can be designed to have a pH triggerable solubility, providing a means to control the release of an active ingredient at a desired pH level.