Abstract: A multilayer wiring substrate using a resin composition comprising polyquinoline compound and bismaleimide compound as essential ingredients between wiring-carrying resin layers as insulating layers forms no void at the time of lamination, has an excellent adhesive property at various interfaces, has a heat stability after lamination and is high in reliability, so that, it is applicable to many fields not only including the multilayer wiring substrates capable of mounting LSI or tip carrier directly but also including multilayer wiring substrate for work station, mounting substrates for small-sized electronic devices such as camera and video for people's use, and high frequency multitip module multilayer substrate.

Abstract: A polyamide resin composition comprising 100 parts by weight of a polyamide resin, from 0.01 to 100 parts by weight of a liquid-crystalline resin, and from 0.01 to 5 parts by weight of an acid anhydride all the time has good fluidity even when it is left for a relatively long period of residence time in a cylinder of a molding machine while it is molded, and has good moldability. The amount of cushion resin needed for molding the composition fluctuates little, and the failure such as cobwebbing in molding the composition is reduced. The moldings of the composition have good impact resistance and good outward appearance. The composition is most suitable to producing box-type moldings with thin-wall parts.

Abstract: An adhesive tape for lead-on-chip (LOC) IC applications containing a polyamide-based adhesive composition which is the reaction product from a reaction mixture of: (a) a pre-imidized polyamic acid; and (b) a bismaleimide that has been modified by a barbituric acid of a derivative of barbituric acid to become a barbituric acid modified bismaleimide. The pre-imidized polyamic acid is a reaction product from a reaction mixture that contains a polyamic acid and a cyclizing agent. The polyamide-based adhesive composition provides all the desirable heat resistance and other mechanical and dielectric characteristics. But, most significantly, its microscopic rheological properties are adjusted such that excellent contact is achieved between the resin molecules and the lead frame surface while eliminating or at least minimizing the extent of adhesive overflow, which can substantially reduce the reliability of the final IC product.

Abstract: Novel powder coating compositions containing reactive hyperbranched polymers are disclosed and claimed. Preferred embodiments include powder coating compositions formed from hyperbranched polyesters having terminal hydroxy, carboxy, epoxy, and isocyanate groups. Preferred hyperbranched polyesters are formed from .alpha.,.alpha.-bis-(hydroxymethyl)-propionic acid, which act either as crosslinkers, adhesion promotors, or flow and leveling agents.

Abstract: The present invention relates to cured compositions useful as adhesives and sealants formed by dispersing an amine-terminated polyamide curative into a base to form a composite and activating the composite forming the cured composition. Bases described include epoxies, polysulfides and cyanoacrylates. Curing mechanisms include heat and pressure activation. The amine-terminated polyamide curative has a ratio of equivalents of amine to acid groups of from about 1.05:1.00 equivalents NH.sub.X :COOH to no greater than about 1.95:1.00 when x is 1 or 2.

Abstract: An actinic radiation sensitive polymer composition containing(a) a polyimide precursor obtainable by the interaction of an amine compound having a photocrosslinking group with carboxyl groups of a poly(amic acid) chain, and(b) a photoinitiator and/or photosensitizer,in which the degree of imidization Ia is 0.03.ltoreq.Ia.ltoreq.0.6, has the characteristic features of both good stability of viscosity with lapse of time and good photosensitive performance.

Abstract: Higher generation radially layered copolymeric dendrimers having a hydrophilic poly(amidoamine) or a hydrophilic poly(propyleneimine) interior and a hydrophobic organosilicon exterior are prepared by first reacting a hydrophilic dendrimer having --NH.sub.2 surface groups with an organosilicon compound, and then hydrosilating the resulting copolymeric dendrimer with another organosilicon compound in the presence of a noble metal catalyst. In an alternate embodiment, the radially layered copolymeric dendrimers are prepared by reacting a hydrophilic dendrimer having --NH.sub.2 surface groups directly with an organosilicon dendron or organosilicon hyperbranched polymer.

Abstract: The present invention provides, as heteroaromatic compounds made functional so as to be used for nonlinear optical materials, compounds represented by the following general formula (1), and also provides polymers obtained from these and nonlinear optical parts comprising such polymers. In the formula, Ar.sup.1 and Ar.sup.2 each represents a divalent aromatic group; R.sup.1, R.sup.2 and R.sup.3 each represents an atom or a group independently selected from a hydrogen atom or an alkyl group and an aromatic group; X.sup.1 represents a monovalent organic group; n represents an integer of 2 to 12; and Z.sup.1 and Z.sup.2 each represents a group independently selected from electron attractive functional groups.

Abstract: A composition, which comprises (a) a cycloaliphatic epoxy resin,(b) an OH-terminated polysiloxane,(c) a polysiloxane/polyether copolymer, and(d) a cyclic polysiloxane,has excellent hydrophobic properties and can be used as electric insulation composition.

Abstract: The invention relates to a composition including (i) at least one polyamide and at least one copolymer (A) of ethylene with at least one comonomer chosen from unsaturated carboxylic acids, esters of unsaturated carboxylic acids or vinyl esters of saturated carboxylic acids and (ii) being in powder form. These compositions are subsequently deposited on metal substrates and then a highly corrosion-resistant coating is obtained by melting.

Abstract: Molecular dispersions of rigid-rod polybenzobisazole polymer/copolymer in thermoplastic matrices in a weight ratio of about 1:99 to 50:50 are prepared by dissolving the rigid-rod polymer in an alcoholic or aprotic solvent, dissolving the thermoplastic polymer in an alcoholic or aprotic solvent, combining the two solutions and recovering the resulting molecular composite from the combined solution. These molecular dispersions consist essentially of rigid-rod polybenzobisazole polymer/copolymer having sulfonic acid groups pendant to the polymer/copolymer backbone and thermoplastic polymers selected from the group consisting of polyvinylpyridines, poly(arylene ether ketone)s with a pyridyl functionality, aromatic poly(pyridine ether)s and poly(pyridine ether sulfone) copolymers, and polyimides with a pyridyl functionality.

Abstract: Polymers are disclosed that are useful in performing chiral separations. A synthetic scheme for producing the novel polymers is also disclosed. The alkyl side chains of poly(.gamma.-alkyl-.alpha.,L-glutamates) have been altered, allowing the facile substitution of the side chains with pendent functional groups. The compounds may be used as a stationary-phase or pseudo-stationary phase in separation techniques such as high performance liquid chromatography, or electrokinetic capillary chromatography. The novel compounds are water-soluble or water-swellable, and are particularly useful in separations of stereoisomers.

Abstract: A remoistenable hot melt adhesive composition comprising (i) 25 to 80% by weight of a sulfonated polyester;(ii) 3 to 40% by weight of an anionic or cationic plasticizer;(iii) 0 to 40% by weight of a polar tackifier;(iv) 0 to 3% by weight of an antioxidant; and(v) 10 to 35% by weight of a polar wax; and(vi) optionally 0 to 30% nonionic plasticizer, wherein the total of (i)-(vi) to equal 100% by weight.

Abstract: Molecular dispersions of rigid-rod polybenzobisazole polymer/copolymer in thermosetting matrices in a weight ratio of about 1:99 to 50:50 are prepared by dissolving the rigid-rod polymer in an alcoholic or aprotic solvent, dissolving the thermosetting polymer in an alcoholic or aprotic solvent, combining the two solutions and recovering the resulting molecular composite from the combined solution. These molecular dispersions consist essentially of rigid-rod polybenzobisazole polymer/copolymer having sulfonic acid groups pendant to the polymer/copolymer backbone and thermosetting polymers selected from the group consisting of iminobis(N-propyl-2-phenylethynyl-phthalimide), N-ethyl-(2,6-di-benzocyclobutenoxy)benzylamine, iminobis(N-propylnadic imide) and difunctional benzoxazine monomers of the formula ##STR1## wherein X is a single bond, --CO-- or --C(CH.sub.3).sub.2 -- and Q is --CH.sub.3 or --C.sub.6 H.sub.5.

Abstract: A crosslinked nylon block copolymer comprising a copolymer containing a polyamide block and an elastomeric block, irradiation crosslinked, including a compound which promotes crosslinking therein. In process form, the present invention comprises supplying a nylon block copolymer, containing a polyamide block and an elastomeric block, along with crosslinking promotor and exposing the block copolymer to irradiation, sufficient to crosslink the copolymer and improve mechanical properties therein. The crosslinked nylon block copolymers here have particular utility in both the medical and wire and cable industries.

Abstract: The present invention is directed to a biocompatible polymeric material and methods of making prepared by forming a mixture of collagen, a water-soluble ethylenically unsaturated compound and a cross-linking agent at a temperature of 30.degree. C. to 42.degree. C.; adjusting the pH of the mixture to 3.2 to 5.0; and polymerizing the mixture. The resulting material is rinsed in a physiologic solution at a temperature of 25.degree. C. to 80.degree. C. The resulting polymeric material has a modules of elasticity in the range of 10 to 27.times.10.sup.5 N/m.sup.2. Mechanical strength of the polymeric material is 20 to 100 times greater than polymeric material prepared by known methods. The material is optically transparent and is characterized by 95% or more light transmission in the visible spectrum and by resolution of 200 lines per mm for a +20D intraocular lens. The material is characterized by low protein absorption of about 0.1.times.10.sup.-3 .mu.

Abstract: The instant invention teaches a method for enabling the formation of a high damping, soft polymer gel. The method includes: reacting a poly(maleimide-co-alkenyl benzene) polymer with a nylon and an alkyl diamine under substantially dry conditions sufficient to form a nylon grafted poly(maleimide-co-alkenyl benzene) polymer product; and, dispersing the nylon grafted poly(maleimide-co-alkenyl benzene) polymer product with an extender oil sufficient to form the gel. The instant invention also contemplates a polymer gel composition, a polymer composition and an article manufactured from the polymer gel composition.

Abstract: The invention relates to impact-resistant injection mouldings based on polyamide resin (A) and on a disperse phase whose particles have a number-average diameter greater than 0.4 .mu.m, a volume-average diameter greater than 1 .mu.m and such that more than 50% by volume of the particles are larger than 1 .mu.mThe disperse phase may consist of a mixture including at least one copolymer (B) of ethylene and of an unsaturated epoxide and of at least one polyolefin (C).

Abstract: This invention generally provides a class of novel cationic resin comprised of a cross-linked polyamine having pendant tertiary and/or quaternary amine groups linked to amine groups in said polyamine by a hydrocarbon chain including a hydroxyl group in the .beta.-position with respect to the polyamine chain. In general, these resins can comprise the reaction product of a polyamine having secondary amine groups, a crosslinking agent, and a cationizing agent having an epoxide group and a tertiary or quaternary amine (quaternary ammonium) group. These cationic resins have been found to be useful for a variety of operations in the manufacture of paper and paperboard, especially as drainage aids and stabilizers for dispersed rosin sizing agents.

Abstract: A resin composition comprising an epoxy group-containing cycloolefin resin and a crosslinking agent is provided. More specifically, a resin composition comprising an epoxy group-containing thermoplastic norbornene resin obtained by introducing epoxy groups into a thermoplastic norbornene resin, and as the crosslinking agent, a curing agent for epoxy resins or a photoreactive substance is provided. The resin composition is suitable for use as an insulating material.

Abstract: The thermosetting coating composition in a powdery form, includes (a) a binder resin prepared by the steps comprising preparing a starting material monomer mixture of two different polymerization reactions, each of the polymerization reaction being carried out in an independent reaction path, and then concurrently carrying out both of the two different polymerization reactions in one reaction vessel; (b) a colorant; and (c) a crosslinking agent. The coating film is prepared by curing the above thermosetting coating composition.

Abstract: The invention relates to a Bismaleimide-Triazine resin (BT resin ) and production method thereof and in particular, a series of novel BT resin prepared by reacting a novel bismaleimide with various aromatic cyanate esters. By combining said novel bismaleimide monomer with various proportions of cyanate esters having different structures, BT resins having various processing temperature conditions can be formulated, which, after polymerizing and crosslinking, can provide materials with various thermal stability, dielectric constants, and mechanical properties for various applications.

Abstract: The invention relates to polymerisable double-bond derived polyamides obtainable by reacting the polyamide in an aqueous solution with a compound which contains both a polymerisable double bond and an oxirane ring. These derived polyamides may be processed to provide graft polymers with improved properties.

Abstract: Biodegradable polyetheresteramides Q1 with a molecular weight (M.sub.n) in the range from 6000 to 80,000 g/mol, a viscosity number in the range from 30 to 450 g/ml (measured in o-dichlorobenzene/phenol (50/50 ratio by weight) at a concentration of 0.5% by weight polyetheresteramide Q1 at 25.degree. C.), and a melting point in the range from 50.degree. to 200.degree. C., obtained by reacting a1) from 95 to 99.9% by weight polyetheresteramide P1, obtained by reacting a mixture ofb1) 20-95 mol % adipic acid or ester-forming derivatives thereof, and5-80 mol % terephthalic acid or ester-forming derivatives thereof, andb2) a mixture of a dihydroxy compound selected from C.sub.2 -C.sub.6 -alkanediols and C.sub.5 -C.sub.10 -cycloalkanediols,b22) a dihydroxy compound which contains ether functionalities and has the formula IHO--((CH.sub.2).sub.n --O)).sub.m --H Iwhere n is 2, 3 or 4 and m is an integer from 2 to 250, andb23) from 0.5 to 80 mol % of an amino-C.sub.2 -C.sub.12 -alkanol or an amino-C.sub.5 -C.sub.

Abstract: The present invention relates to a polyether polymer having structural units represented by general formula (1), wherein R.sup.1 and R.sup.2 mean individually an alkyl group of 1-20 carbon atoms, which may have at least one hydroxyl group, and Y denotes an alkylene group of 1-10 carbon atoms, which may have a hydroxyl group, a preparation process thereof, and a moisturizer, a cosmetic composition and a detergent composition comprising this polymer. The cosmetic composition and detergent composition are excellent in moisture retention, keep up the moisturizing effect over a long period of time and give users a pleasant feeling.

Abstract: A water soluble resin obtainable by reacting at least two reactants comprising a polyamine and a urea compound, or at least four reactants comprising a polyamine, a urea compound, a dibasic carboxylic acid compound and a lactam; and then reacting the reaction product with at least one compound selected from among epihalohydrins, .alpha.,.gamma.-dihalo-.beta.-hydrins, glycidyl compounds and isocyanates. The resultant the water soluble resin is useful for making a paper coating composition, such as by being mixing that resin with a pigment and an aqueous binder. The paper coating composition does not generate formaldehyde and can be used to manufacture coated papers exhibiting improved properties including excellent water resistance.

Abstract: As a heteroaromatic compound made functional so as to be used in nonlinear optical materials, the present invention provides a heteroaromatic compound represented by the following Formula (1), (2), (3) or (4), a polymer obtained from any of these, a nonlinear optical element comprised of the polymer, an optical device having such an element, and a process for producing them. ##STR1## wherein Ar.sup.1, Ar.sup.2 and Ar.sup.3 each independently represent an aromatic group or an aromatic group having a substituent, R.sup.1, R.sup.2 and R.sup.3 each independently represent a hydrogen atom or a monovalent organic group, X represents a monovalent organic group, Y represents a hydrogen atom or a monovalent functional group, and n represents an integer of 2 to 10.

Abstract: The invention relates to a process for increasing the molecular weight of polycondensates, which comprises heating a polycondensate in the temperature range below the melting point and above the glass transition temperature in the solid phase of the polymer with additionof at least one sterically hindered hydroxyphenylalkylphosphonic ester or monoester.

Abstract: The present invention discloses a water-soluble self-acid-doped polyaniline, and its sodium salt, which can be cast into free-standing films from their aqueous solutions. A process for preparing a water-soluble self-acid-doped polyaniline is also disclosed, which comprises reacting a polyaniline with a strong base to convert the amino nitrogen thereof to anionic nitrogen; reacting sultone with the anionic nitrogen to form a side chain alkanesulfonic acid group; doping with protonic acid to form precipitate; dissolving (undoping) the precipitate in an alkaline aqueous solution; removing excess alkali from the alkaline aqueous solution; and contacting the resulting aqueous solution with a H.sup.+ -type ion exchange resin. Moreover, an aqueous solution of the present water-soluble self-acid-doped PAn can be easily mixed with an additional water soluble polymer or polymer emulsion, which can then be cased into a polymer blend film having improved mechanical properties and coupling strength to a substrate.

Abstract: An intumescent fire retardant graft polyamide polymer aving resistance to dripping on exposure to fire, and the method of making such graft polyamide polymers, comprising from about 10-40 percent by weight of a melamine compound, 40-95 percent of a thermoplastic polyamide polymer, and 1-10 percent of an oligomer containing 1-4 monomer units of, or reactive with, the polyamide polymer. The graft polymer is formed at about the melting temperature of the polyamide. Caprolactam, and adipic acid-hexamethylene diamine oligomers perform well in forming the graft polyamides with melamine compounds. Effective melamine compounds are melamine, melamine cyanurate, melamine phosphate, melamine borate, methylol melamine, and trimelamine isocyanurate. Extraneous materials such as fiber, glass, and antioxidants may be added to affect the physical properties of the product.

Abstract: A dope for cast formation comprising a fluorine including polyimide resin and an organic solvent (P) as main components. The fluorine including polyimide resin has at least one --CF.sub.3 group in the repeating molecular unit. The organic solvent (P) is present during the resin polymerization of the fluorine including polyimide resin. The organic solvent (P) is diethylene glycol dimethyl ether.

Abstract: A method for producing a water absorbent resin by polymerizing a water-soluble monomer having a polymerizable unsaturated group (A) and a crosslinking agent (B) as the essential components by radical polymerization in the presence of water or, polymerizing a water-soluble monomer having an unsaturated group (A) and a crosslinking agent (B) by radical-graft copolymerization with a water-soluble polymer (C) as the backbone polymer in the presence of water, wherein a water-based solid material capable of being endothermally fused or dissolved into water (D) is added when initiating the polymerization, with at least a part of the water-based solid material (D) in a solid state. By the method of the present invention, a water absorbent resin having a high molecular weight and a high absorption capacity with little water-soluble component can be obtained with ease.

Abstract: Condensation and addition polymers which comprise as structural repeating unit N,N'-bridged bistetramethylpiperidyloxy groups of the formula I ##STR1## in which m is 2 or 3 are suitable as light stabilizers and other stabilizers for organic material

Abstract: A process is disclosed for making a resin additive for a liquid paint. The process comprises of the steps selecting a thermosettable organic resin, curing the resin to form a cured thermoset resin, and particulizing the cured resin to a size no greater than about 20 .mu.m. The present invention is particularly useful in making environmentally friendly paint formulations.

Abstract: A method of improving the tribological properties of a polyketone polymer are presented in which polyketone polymer starting materials are blended with an aramide. Blends produced according to this process are also presented. The blend is particularly useful in the manufacture of articles used in applications where surfaces are in contact during motion.

Abstract: A composition of matter useful as a hotmelt adhesive is provided. The adhesive comprises a polyamide based on dimerized fatty acid, preferably having an amine value of less than 2, and at least one heat stabilizer for polyvinyl chloride, preferably selected from the group consisting of alkyl tin carboxylate compounds and epoxy compounds. The heat stabilizer is preferably present in an amount of 0.2% to 10.0% by weight of the composition. Also provided is a method of using the composition as a hotmelt adhesive for polyvinyl chloride.

Abstract: Polyimide oligomers include (1) linear, mono-functional crosslinking oligomers prepared by condensing a monoanhydride end cap with a diamine that includes alternating ether and "sulfone" (--SO.sub.2 --, --S--, --CO--, --(CF.sub.3).sub.2 C--, or --(CH.sub.3).sub.2 C--) linkages connecting alternating aromatic radicals and with a dianhydride (or dianhydride mixture), particularly the unsaturated, aliphatic dianhydride commonly known as MCTC; (2) linear, mono- or difunctional crosslinking oligomers prepared by condensing an amine end cap with a diamine and a dianhydride; and (3) multidimensional, crosslinking oligomers having an aromatic hub and at least three radiating arms connected to the hub, each arm including a crosslinking end cap at its distal end and at least one imide linkage.Blends, prepregs, and composites can be prepared from the oligomers.

Abstract: Grafted polyamidoamines and grafted polyethyleneimines obtainable by free-radically initiated polymerization of(a) 1-vinylpyrrolidone, 1-vinyltriazole, 1-vinylimidazoles, mixtures of said monomers or mixtures of at least one of said monomers with up to 20% by weight of other monoethylenically unsaturated monomers in the presence of(b) water-soluble or -dispersible polyamidoamines, polyethyleneimines or mixtures thereof in a weight ratio of (a):(b) from 5:95 to 95:5, are useful as dye transfer inhibitors in surfactant-based detergents when included therein in an amount from 0.05 to 10% by weight.

Abstract: We achieve solvent resistance and extended use life for advanced polyimides by including at least some solvent-resistant linkages in the backbone in place of phenoxyphenyl sulfone linkages and using diPEPA or PEPA crosslinking end caps.

Abstract: Graft copolymers obtained by(A) polymerizing 10 to 89 wt % of a mixture consisting essentially of either(a1) from 70 to 99.89 wt % of a C.sub.1 -C.sub.18 -alkyl ester of acrylic acid,(a2) from 0.1 to 10 wt % of a polyfunctional monomer,(a3) from 0 to 29.89 wt % of an ethylenically unsaturated monomer which differs from (a1) and (a2), is copolymerizable therewith and carries no acid group and(a4) from 0.01 to 10 wt % of a copolymerizable monomer containing at least one acid groupor(a5) from 49.99 to 99.99 wt % of at least one diene,(a6) from 0 to 50 wt % of a monomer which is copolymerizable therewith and carries no acid group and(a7) from 0.01 to 10 wt % of a copolymerizable monomer containing at least one acid groupin the presence of from 1 to 80 wt % of a cross-linked silicone rubber to form a copolymer A,and(B) polymerizing 10 to 89 wt % of a mixture consisting essentially of(b1) from 50 to 99.99 wt % of a styrene compound of the formula (I) ##STR1## where R.sup.1 and R.sup.

Abstract: The present invention describes an aliphatic polyoxaamide polymer and blends thereof that may be used to produce surgical devices such as sutures, sutures with attached needles, molded devices, and the like. The aliphatic polyoxaamide of the present invention have a first divalent repeating unit of formula I:[X--C(O)--C(R.sub.1) (R.sub.2)--O--(R.sub.3)--O--C(R.sub.1) (R.sub.2)--C(O)--] Iand a second repeating unit selected from the group of formulas consisting of:[--Y--R.sub.17 --].sub.T, I[--O--R.sub.5 --C(O)--].sub.B, and III([--O--R.sub.9 --C(O)].sub.P --O--) XIand combinations thereof, wherein X and Y are selected from the group consisting of --O-- and --N(R)--, provided both X and Y are not both --O-- and may be blended with a second polymer that is preferably biocompatable.

Abstract: A process for the functionalisation of polymers is disclosed. Functionalisation takes place by reacting a polymer with a peroxidant, preferably, the peroxydisulphate or monosulphate or sodium or potassium in an aqueous medium. The hydroxylated polymer can then be reacted with other materials, including biomolecules. Using the method of the inventon, products eg. Catheters or oxygenators can be produced with improved properties hitherto unobtainable.

Abstract: The invention relates to polycarbonates (PC) terminated by allylphenols, preferably eugenol, and subsequently grafted with maleic anhydride (MA) in the melt, to their use as blending partners for polyamides (PA) and to the polycarbonate/polyamide blends.

Abstract: A polyimide obtained by reacting an acid dianhydride such as catechol bistrimellitate dianhydride, bisphenol A bistrimellitate dianhydride, etc. with a diamine such as 4,4'-diamino-3,3',5,5'-tetraisopropyl-diphenylmethane, etc. has high solubility in organic solvents and good moldability at low temperatures, and can provide a thermosetting resin composition together with a polymaleimide.

Abstract: The invention relates to the use of aminoalkanolamide esters as processing aids, more particularly as lubricants and/or mold release agents, for thermoplastics.

Abstract: A highly useful photographic film base comprises a miscible blend of poly(ethylene naphthalate) and a poly(ether imide) in specified proportions. Photographic elements prepared with this film base have a lesser tendency to take core-set and post process curl than do elements prepared with poly(ethylene naphthalate) film base.

Abstract: Powder coating composition which comprises a hybrid polymer system in granular form of a polymer A formable from monomer(s) by aqueous suspension polymerisation and a polymer B, different to A, which polymer system has been obtained using a process which comprises dissolving polymer B in monomeric material to be used in the formation of polymer A, polymerising the monomer(s) to form polymer A using an aqueous suspension polymerisation process, and removing the aqueous phase to form a hybrid of the polymers A and B in granular form, and wherein polymer A and polymer B bear functional groups for imparting curability to the hybrid polymer system, and wherein further the hybrid polymer system has a number average molecular weight within the range of from 1500 to 15,000.

Abstract: The compound 2-ethynyl-5-(4-pyridyl)ethynyl thiophene: ##STR1## when incorporated into a thermoplastic polymer having repeating units of the formula: ##STR2## wherein X is --O-- or --S--, and R is selected from the group consisting of: ##STR3## and Ar is selected from the group consisting of: ##STR4## wherein X is as previously defined, poled to align the molecules and cured to crosslink at least the terminal acetylenic groups, has second-order nonlinear optical activity.

Abstract: A method for property modification of bulk polymers, by initially treating a short chain monomeric organic acid, having a carboxylic group (with dissociation constant between 10.sup.-2 to 10.sup.-6 cm.sup.-1, and less than 8 carbons); with a Group IA, IIA or IIB metal, metal oxide, peroxide, hydroxide, or halogens, for forming a metal ligand or complex metal salt of the acid. The bulk polymers are mixed with the complex metal salts and free radicals are introduced into the mixture by means of oxidizing materials, to functionalize the bulk polymer with ionic polymerization sites. A copolymer formation is effected between the monomeric organic metal salt anion and the bulk polymer, as catalyzed by the metal cation, at such sites. The polymerization is a substantially non-cross linked ionic one resulting from the dissociation parameters and the short chain length of the complex metal salt, which is maintained prior to copolymer formation.

Abstract: The invention provides a novel poly(aminoamideureylene) resin and a process for making the resin without epichlorohydrin. The resin useful for improving wet strength of paper and paperboard intermediates. The resin is formed by making a prepolymer by reacting a diaminoamine, a dicarboxylic acid, and urea, allylating the prepolymer, and then reacting with hypohalous acid to produce an allylated quaternized poly(aminoamideureylene) having halohydrin substituents with resort to using epichlorohydrin. The resin can be activated for use in a papermaking process by treatment with a caustic (alkaline) agent. Optionally, the resin can be cross-linked prior to activation by heating in the presence of a caustic agent.The invention also provides an improvement in making polymers having halohydrin substituents formed by reacting an allylated polymer with hypohalous acid wherein the reaction is conducted without control of the pH.