41 results about "Atomic mass unit" patented technology

The present invention relates to a fragrance composition to be incorporated into the core of a core shell capsule comprising:I) 60-100% by weight of at least 5 fragrance compounds, 20-100% by weight of said fragrance compounds comprising at least 3 bulky molecules having a molecular weight of less than 325 atomic mass units, conforming to the following structures:a) molecules containing more than one ring, each ring having between 3 and 8 atoms of any of carbon, oxygen, nitrogen or sulfur in any ring and atoms being shared by any of the rings;b) molecules having at least two rings, each ring having between 3 and 8 atoms of any of carbon, oxygen, nitrogen or sulfur in which any rings share a common atom;c) molecules having at least two rings, each ring having between 3 and 8 atoms of any carbon, oxygen, nitrogen or sulfur in which any two rings share at least two adjacent common atoms;d) molecules containing a single alicyclic ring which contains at least 5 atoms, but no more than 8 atoms, of any of carbon, oxygen, nitrogen and sulfur in which at least one of the carbon atoms of the ring has two substituents, or a carbon atom alpha to the ring is tertiary carbon atom, or the ring has substituents on at least three of the atoms which make up the ring;e) molecules containing at least one macrocyclic ring, which is a ring having more greater than eight atoms of any of carbon, nitrogen oxygen or sulfur in the ring;f) molecules containing at least one substituted aromatic ring containing at least 5 atoms of any of carbon, oxygen, nitrogen or sulfur, but in which at least one substituents has a tertiary carbon in a position alpha or beta to the ring;g) molecules containing a substituted aromatic ring comprising at least 5 atoms with at least 3 substituents groups on the ring all of which must contain at least 2 atoms from among carbon, oxygen, nitrogen or sulfur; andII) 0-40% by weight of pro-fragrances, solvents, and other benefit agents which possess any of the structural features a) to g) but are not constrained by the molecular weight restrictions.

Aqueous hair cleansing and conditioning compositions are disclosed comprising comprising; a) from 1% to 50% by weight of a cleansing surfactant, b) discrete, dispersed droplets comprising a water-insoluble silicone conditioning oil characterised in that the mean diameter of the droplets (D3,2) is from 2 to 100 micrometres and c) a surface active block copolymer with a mean molecular weight of 4000 unified atomic mass units or more comprising polyethyleneoxide blocks and polypropyleneoxide blocks, wherein each block consists of 2 or more ethylene oxide or propylene oxide monomer units and wherein the mean number propylene monomer units in the block copolymer is 25 or more.

The invention provides a medical implant or medical implant part comprising porous ultrahigh molecular weight polyethylene having a weight average molecular weight of about 400,000 atomic mass units or more and a porosity of about 15% to about 65%. The invention further provides a process for producing a medical implant or medical implant part.

A method for inhibiting formation of hydrocarbon hydrates in mixtures of water and a hydrate-forming guest molecule has been discovered that involves adding a composition to the mixtures in an amount that is effective in inhibiting formation of the hydrocarbon hydrates under conditions otherwise effective to form the hydrocarbon hydrates in the absence of the reaction product. The composition includes at least one dendrimeric compound having a number average molecular weight of at least 1,000 atomic mass units (amu); and at least one small molecular weight species having less than 1,000 amu, selected from the group consisting of polyalkyleneimine, polyallylamine, starch, sugars, and polymers or copolymers of vinyl alcohol or allyl alcohol; and, optionally, at least one surfactant.

The invention provides a polyurethane foam and associated method and article. The polyurethane foam is prepared from a reaction mixture that includes an aromatic isocyanate compound, and blowing agent, and a polyol that itself includes a poly(phenylene ether) having a number average molecular weight of 600 to 2000 atomic mass units and an average of 1.5 to 3 hydroxyl groups per molecule. Use of the poly(phenylene ether) is associated with faster formation of polyurethane, and increased compression force deflection. The polyurethane is useful for forming articles including bedding, furniture, automotive interiors, mass transportation interiors (seating, padding, instrument panels, door panels, steering wheels, armrests, and headrests), flooring underlay (foam, rebond binder), packaging, textiles, lining and gasketing applications, acoustic dampening materials, and weather stripping.