Wet strengthened fiber products, wet strengthening resins, and methods for making such wet strengthened fiber products and wet strengthening resins. The wet strengthened fiber product can include a fiber web and an at least partially cured wet strengthening resin, which prior to at least partially curing, the wet strengthening resin can include a polyamide-epihalohydrin (PAE) resin and a cationic styrene maleimide (SMI) resin. The PAE resin can include a reaction product of a polyamidoamine and an epihalohydrin and the cationic SMI resin can include a reaction product of a styrene maleic anhydride (SMA) copolymer and an amine. The wet strengthened fiber product can include the wet strengthening resin in an amount of about 0.05 wt % to about 5 wt %, based on a dried weight of the wet strengthened fiber product.

The invention relates to an antiviral composition for the surface treatment of an article, comprising: at least one polyamide-polyamine-epichlorohydrin resin, known as PAAE resin, and one or more biocidal agents including at least one compound based on silver and/or one compound based on quaternary ammonium.

The invention also relates to a process for the surface treatment of an article, in particular a substrate, intended to give it antiviral properties, comprising the application to the surface of said article of one or more compositions comprising at least said PAAE resin and said biocidal agent(s), and also to an article surface-treated via said process.

Resin compositions, products made therewith, and methods for making such resin compositions and products. The resin composition can include a polyamide-epihalohydrin resin, a cationic styrene maleimide resin, and a urea-formaldehyde resin. The polyamide-epihalohydrin resin can include a reaction product of a polyamidoamine and an epihalohydrin. The cationic styrene maleimide resin can include a reaction product of a styrene maleic anhydride copolymer and an amine compound. The product can include a fiber web and an at least partially cured resin composition. The resin composition, prior to curing, can include a polyamide-epihalohydrin resin, a cationic styrene maleimide resin, and a urea-formaldehyde resin. The polyamide-epihalohydrin resin can include a reaction product of a polyamidoamine and an epihalohydrin. The cationic styrene maleimide resin can include a reaction product of a styrene maleic anhydride copolymer and an amine compound.

A wood adhesive, a method for adhering wood materials using the same, and a composite wood structure using the same are disclosed. The wood adhesive comprises a first agent and a second agent, wherein the first agent comprises sodium carboxymethyl cellulose having a molecular weight from about 15,000 to about 500,000 and a degree of substitution from about 0.4 to about 2, and the second agent comprises polymeric quaternary amine.

Resins compositions and methods for making and using same. The resin composition can include a glyoxalated polyacrylamide resin and a polyamide-epihalohydrin resin. The polyamide-epihalohydrin resin can include a polyamine partially crosslinked with a bridging moiety and having azetidinium ions. The bridging moiety can be derived from a functionally symmetric crosslinker. A fiber product can include a plurality of fibers and the resin composition, where the resin composition can be at least partially cured.

According to the present invention, curable aqueous compositions provide excellent wet tensile strength and comprise (i) one or more polyacid, (ii) a mixture of two or more polyols including pentaerythritol, (iii) a carbohydrate, such as a starch, and (iv) from 0.5 to 12 wt. %, based on total solids, of one or more azetidinium group containing polyamidoamine resins. The compositions are useful in providing fibrous articles, such as heat resistant nonwovens.

Creping adhesives can include one or more crosslinked resins having the chemical formula (O), (P), or (Q), where R.sup.X can be a crosslinking moiety, each R.sup.Y can independently be a substituted or unsubstituted organic diyl moiety, and each A.sup.? can independently be an anion. The creping adhesive can have a cylinder probe adhesion of about 100 gram-force to about 300 gram-force. The creping adhesive can have a peel adhesion of about 20 g/cm to about 110 g/cm.

Described herein is a composition including copper ions, an acid, and at least one polyaminoamide including, a group of formula L1
[A-B-A-Z].sub.n[YZ].sub.m(L1)
where
B is a diacid fragment of formula L2 ##STR00001##
A, A are amine fragments independently selected from the group consisting of formula L3a ##STR00002## and formula L3b ##STR00003##
Y is a co-monomer fragment;
Z is a coupling fragment of formula L4 ##STR00004##
n is an integer of from 1 to 400; and
m is 0 or an integer of from 1 to 400.

Non-conductive substrates, especially the sidewalls of micro/nano holes thereof are chemically modified (i.e., chemically grafted) by reduced graphene oxide (rGO). The rGO possesses excellent electrical conductivity and therefore the modified substrates become conductive, so that it can be directly electroplated. These rGO-grafted holes can pass thermal shock reliability test after electroplating. The rGO grafting process possesses many advantages, such as a short process time, no complex agent (i.e., no chelator), no toxic agents (i.e., formaldehyde for electroless Cu deposition). It is employed in an aqueous solution instead of an organic solvent, and therefore is environmentally friendly and beneficial for industrial production.

The invention relates to a process to modify polymers on-site the main process site. The process comprises on-site the main process site a receiving section (11) configured to receive an adduct solution as an interim polymer product for a process polymer of the main process site in solids contents of 15-60 wt-%, preferably 20-60 wt-%, more preferably 30-60 wt-%, a crosslinking section (13) configured to crosslink polymers of the adduct solution and a final section (14) configured to provide a ready-to-use solution with the crosslinked polymers to the main process as the process polymer on-site the main process site. The invention also relates to a method configured to modify polymers on-site at a main process site.