Polyethylene glycol (PEG)-b-poly(β-amino ester) (PBAE) co-polymers (PEG-PBAE) and blends of PEG-PBAEs and PBAEs and their use for delivering drugs, genes, and other pharmaceutical or therapeutic agents safely and effectively to different sites in the body and to different cells, such as cancer cells, are disclosed.

Described herein is a detergent composition including (A) at least one polymer including (a) a core that includes one to 3 moieties of general formula (I),

##STR00001## where Z are different or the same and are selected from the group consisting of C.sub.2-C.sub.12-alkylene and C.sub.3-C.sub.12-cycloalkylene A.sup.1 are different or the same and are: selected from the group consisting of C.sub.1-C.sub.12-alkylene, C.sub.6-arylene, and C.sub.3-C.sub.12-cycloalkylene, or based on citric acid, X.sup.1 is selected from the group consisting of hydrogen, methyl, ethyl, and combinations of at least two of the foregoing, n is in a range of 1 to 100; and (b) polyalkylene oxide chains.

The present invention relates to novel polymer compositions, to a process for their manufacturing, to the use of said polymer compositions for modifying the viscosity of aqueous compositions, and to water-borne coating compositions containing the novel polymer compositions as thickeners. The polymer compositions comprise a polymer material which is obtainable by reacting: a) a polymer P1 having at least one functional group of the formula (I), where k is an integer from 0 to 4; n is 0 or 1 p is an integer from 1 to 10, the number average of p being from 1.5 to 10; Q is a divalent moiety selected from the group consisting of —O— and —NH—; P is a p-valent hydrophilic neutral polymer radical; and R.sup.1 is as defined in the claims; with b) a succinic anhydride of the formula (II) where R is C.sub.4-C.sub.24-alkyl or C.sub.4-C.sub.24-alkenyl.

##STR00001##

In various exemplary embodiments, a system and an associated method to retrieve information related to marketplace items within an electronic environment are disclosed. A network architecture comprises a listing module to store the information related to the marketplace items. The related information includes one or more user-created items such as an image of a model with one or more tagged items worn by the model. Each of the one or more tagged items has associated descriptive metadata. A communications module is arranged to receive a query including search terms related to social fashion items from an end-user. A query engine is coupled to the communications module to match the search terms contained within the query to the associated descriptive metadata of the tagged items in the listing module. A processing module then displays to the end-user the model and the one or more tagged items.

Poly(amine-co-ester-co-ortho ester) polymers, methods of forming active agent-load nanoparticles therefrom, and methods of using the nanoparticles for drug delivery are disclosed. The nanoparticles can be coated with an agent that reduces surface charge, an agent that increases cell-specific targeting, or a combination thereof. Typically, the loaded nanoparticles are less toxic, more efficient at drug delivery, or a combination thereof compared to a control or other transfection reagents.

A semi-crystalline biaxially oriented film comprising a copolyester which comprises repeating units derived from an aliphatic glycol, an aromatic dicarboxylic acid, and the monomer of formula (I): (I) wherein n=2, 3 or 4, Z is C═O, and wherein comonomer (I) constitutes a proportion of the glycol fraction of the copolyester and is present in an amount of at least about 4 mol % of the glycol fraction of the copolyester. ##STR00001##

A method of producing copolyester material with peptide and is disclosed. The method includes: putting ethylene glycol, collagen peptide and Benzenedicarboxylic acid into a container, and mixing them to form a mixture; heating the mixture for executing an esterification reaction, to product esters and water; heating the esters to a first temperature, and stirring the esters via a mixer; in a specific period, decreasing the pressure in the container to a first pressure for executing a polycondensation reaction; decreasing the pressure in the container to a second pressure, and stirring the esters via the mixer, to produce a copolyester material with peptide.

The invention relates to liquid laundry detergent compositions comprising a) one or more polyesters comprising two or more of the repeating structural unit (a1), one or more of the repeating structural unit (a2) and either one or two of the terminal group (a3), wherein G.sup.1 is one or more of (OC.sub.nH.sub.2n) with n being a number of from 2 to 10, R.sup.1 is a C.sub.1-30 alkyl, p is based on a molar average, a number of from 0 to 60, q is based on a molar average, a number of from 0 to 50, whereby the (OC.sub.3H.sub.6)— and (OC.sub.2H.sub.4)— groups of the terminal group (a3) may be arranged blockwise, alternating, periodically and/or statistically and wherein the connections of the groups (OC.sub.3H.sub.6)— and (OC.sub.2H.sub.4)— to R.sup.1— and —NH are free to vary, adjacent structural units (a1) are connected by the structural unit (a2), in the case that only one terminal group (a3) is present in the polymer, the other terminal group is selected from the group consisting of OH, OCH.sub.3, and G.sup.1OH, and both terminal groups may only be linked to the structural unit (a1), and b) one or more surfactants. The one or more polyesters of component a) possess advantageous stability in alkaline environments, beneficial solubility and advantageously are clearly soluble in alkaline compositions such as liquid laundry detergent compositions and also possess advantageous soil release properties on fatty and oily stains.

##STR00001##

Organic coating compositions, particularly antireflective coating compositions for use with an overcoated photoresist, are provided that comprise that a blend of two or more resins, where one resin has epoxy groups either pendant or fused to the polymer backbone. Preferred coating compositions include: 1) a first resin that comprises one or more epoxy reactive groups; and 2) a crosslinker resin that is distinct from the first resin and comprises epoxy groups.

A compound of the formula (III): ##STR00001##
wherein R.sup.21 is a hydrogen atom or an alkyl group; R.sup.22 is a hydrogen atom or an alkyl group; and R.sup.23 is a divalent organic group.