Abstract:
A method of imparting oil repellency to flexible, fibrous, nonwoven substrates comprising contacting the substrate with a composition prepared from polymerization of monomers in the following percentages by weight: (a) from about 60% to about 90% of a monomer of Formula 1 or a mixture thereof: R f -Q-CO-CR=CH 2 Formula 1 wherein: R f is a straight- or branched-chain perfluoroalkyl group of 2 to about 20 carbon atoms, R is H or CH 3 , Q is -(C n H 2n O) p SO 2 NR 1 (C n H 2n O) y , wherein the -(C n H 2n ) is bonded to R f , and R 1 is H or C 1 -C 20 alkyl; (b) from about 10% to about 25% of a monomer of Formula 2 or a mixture thereof: CH 2 =C(R)COZ(CH 2 )q(CHR) r NR 2 R 3 Formula 2 wherein R 2 and R 3 are each independently C 1 - C 4 alkyl, hydroxyethyl, or benzyl or R 2 and R 3 together with the nitrogen atom form a morpholine, pyrrolidine, or piperidine ring, and Z is -O- or -NR 4 - wherein R 4 is H or C 1 - C 4 alkyl; and (c) from about 1% to about 15% of a monomer of Formula 3 or a mixture thereof: CH 2 =CR(R 5 ) e -COOH Formula 3 wherein R 5 is CO(CH 2 ) 5 , CO-O-(CH 2 ) 2, C 6 H 4 CHR, or CONRR 6 , and R 6 is C 6 H 4 OCH 2 , (CH 2 ) d , or C(CH 3 ) 2 CH 2 .
Abstract translation:包括使柔性纤维状非织造基材赋予拒油性的方法,包括使底物与按单体聚合制备的组合物接触,重量百分比如下:(a)约60%至约90%的式1单体或 其混合物:Rf -Q-CO-CR = CH 2式1其中:Rf为2-约20个碳原子的直链或支链全氟烷基,R为H或CH3,Q为 - (CnH2nO)pSO2NR1( C n H 2n O)y,其中 - (C n H 2n)键合到R f,并且R 1是H或C 1 -C 20烷基; (b)约10%至约25%的式2单体或其混合物:CH 2 = C(R)COZ(CH 2)q(CHR)r NRR2R 3式2其中R 2和R 3各自独立地为C 1 -C 4烷基 ,羟乙基或苄基或R2和R3与氮原子一起形成吗啉,吡咯烷或哌啶环,Z是-O-或-NR4-,其中R4是H或C1-C4烷基; 和(c)约1%至约15%的式3单体或其混合物:CH2 = CR(R5)e-COOH式3其中R5为CO(CH2)5,CO-O-(CH2) 2,C6H4CHR或CONRR6,R6是C6H4OCH2,(CH2)d或C(CH3)2CH2。
Abstract:
It has been discovered by in present invention that, compared with a fluorosurfactant having only one betaine group per molecule, a fluorosurfactant having a plurality of betaine groups per molecule is superior in its ability to undergo electrostatic interaction with other components of a fire fighting composition thereby improving the performance of the fire fighting composition. Previously known fluorosurfactants comprise only one betaine group per molecule. In contrast, the present invention provides for a fluorobetaine copolymer containing a plurality of betaine groups.
Abstract:
Procédé de polymérisation radicalaire pour la préparation de polymères halogénés, mettant en uvre un ou plusieurs monomères éthyléniquement insaturés dont au moins un est choisi parmi les monomères halogénés, de l'iode moléculaire et un ou plusieurs agents générateurs de radicaux choisis parmi les diazocomposés, les peroxydes et les dialkyldiphénylalcanes. Procédé de polymérisation radicalaire pour la préparation, au départ des polymères halogénés préparés par le procédé tel que décrit ci-avant, des copolymères ô blocs dont au moins un bloc est un bloc de polymère halogéné. Polymères halogénés qui ont une masse moléculaire moyenne en nombre Mn supérieure ô 1,0.104 et un rapport Mz/Mw inférieur ô 1,65. Copolymères ô blocs dont au moins un bloc est un bloc de polymère halogéné identique aux polymères halogénés décrits ci-avant. Copolymères ô blocs comprenant au moins un bloc de polymère halogéné, qui ont une masse moléculaire moyenne en nombre Mn supérieure ô 1,5.104 et un indice de polydispersité Mw/Mn inférieur ô 1,60.
Abstract:
A composition useful to provide oil repellency, water repellency, and stain resistance to substrates comprising a polymer prepared by contacting a polytluoroalkyl sulfonyl halide with a compound of Formula II: (E-(O) q ) 3 Si-O-(Si(R 2 ) 2 -O) m [Si(R 3 -NHR 4 )(R 2 )O] n -Si-((O) q -E) 3, Formula III: HR 4 N-R 3 -Si(R 2 ) 2 -O-[Si(R 2 ) 2 -O] m [Si(R 3 -NHR 4 )(R 2 )O] n -Si-(R 2 ) 2 -R 3 -NHR 4 or Formula IV: HR 4 N-R 3 -Si(R 2 ) 2 -O-[Si(R 2 ) 2 -O] m Si-((O) q -E) 3 , wherein each R 2 is independently a C 1 to C 8 alkyl, each R 3 is independently a divalent group containing carbon, oxygen, and optionally at least one of nitrogen oxygen and sulfur, each R 4 is independently H or C 1 to C 8 alkyl, each E is independently a C 1 to C 8 branched or linear alkyl, each q is independently zero or 1, m is a positive integer, and n is independently zero or a positive integer, such that n/(m+n) is zero or a positive fraction having a value up to about 0.7, and the polymer viscosity is less than or equal to 10000 mPa.s under a shear rate of 0.1 s -1 at a temperature of 20° C.
Abstract:
A composition useful to provide oil repellency, water repellency, and stain resistance to substrates comprising a polymer prepared by contacting a polytluoroalkyl sulfonyl halide with a compound of Formula II: (E-(O) q ) 3 Si-O-(Si(R 2 ) 2 -O) m [Si(R 3 -NHR 4 )(R 2 )O] n -Si-((O) q -E) 3, Formula III: HR 4 N-R 3 -Si(R 2 ) 2 -O-[Si(R 2 ) 2 -O] m [Si(R 3 -NHR 4 )(R 2 )O] n -Si-(R 2 ) 2 -R 3 -NHR 4 or Formula IV: HR 4 N-R 3 -Si(R 2 ) 2 -O-[Si(R 2 ) 2 -O] m Si-((O) q -E) 3 , wherein each R 2 is independently a C 1 to C 8 alkyl, each R 3 is independently a divalent group containing carbon, oxygen, and optionally at least one of nitrogen oxygen and sulfur, each R 4 is independently H or C 1 to C 8 alkyl, each E is independently a C 1 to C 8 branched or linear alkyl, each q is independently zero or 1, m is a positive integer, and n is independently zero or a positive integer, such that n/(m+n) is zero or a positive fraction having a value up to about 0.7, and the polymer viscosity is less than or equal to 10000 mPa.s under a shear rate of 0.1 s -1 at a temperature of 20° C.
Abstract:
The invention concerns a radical polymerization method for preparing halogenated polymers, using one or more ethylenically unsaturated monomers whereof at least one is selected among halogenated monomers, molecular iodine and one or more radical generating agents selected among diazo-compounds, peroxides and dialkyldiphenylalkanes. The invention also concerns a method for radical polymerization, starting with halogenated polymers prepared by the above method, of block copolymers whereof at least one block is a halogenated polymer block. The invention further concerns halogenated polymers having a number average molecular weight Mn greater than 1.0.10 and a Mz/Mw ratio less than 1.65. The invention also concerns block copolymers whereof at least one is a halogenated polymer block identical to said halogenated polymers above. Finally, the invention concerns block copolymers comprising at least one halogenated polymer block having a number average molecular weight Mn greater than 1.5.10 and polydispersity index Mw/Mn less than 1.60.
Abstract:
A compound of Formula (I), wherein R a is linear or branched F(CF 2 ) n (CH 2 CF 2 ) m -, or linear or branched F(CF 2 )o interrupted by 1 to 6 catenary oxygen atoms, each oxygen bonded to two carbon atoms, m is 1 to 4, n is 2 to 6, o is 2 to 7, A is O or (CH 2 ) k -COO, R 1 is hydrogen or a methyl, R 2 and R 3 are each independently alkyl having 1 to 6 carbon atoms, and p, q and k are each independently integers from 1 to 10, which is suitable for use as a surfactant and in fire fighting formulations.
Abstract:
Various fluoropolymers have been proposed for imparting oil and water repellency to leather. Commonly, these fluoropolymers are amphiphilic; i.e., they are made from at least one monomer which is hydrophobic and at least one monomer which is hydrophilic. The present invention identifies and remedies disadvantages associated with the ability of amphiphilic fluoropolymers to impart oil and water repellency to leather. Contrary to conventional thinking, it has now been discovered that the incorporation of hydrophilic groups in a fluoropolymer undesirably reduces its ability to impart water resistance to leather. Correspondingly, it has also been discovered that a fluoropolymer incorporating fewer or no hydrophilic groups imparts superior oil and water repellency to leather when compared to fluoropolymers incorporating more hydrophilic groups. Therefore, this invention provides fluoropolymers which incorporate reduced levels of hydrophilic groups.
Abstract:
It has been discovered by in present invention that, compared with a fluorosurfactant having only one betaine group per molecule, a fluorosurfactant having a plurality of betaine groups per molecule is superior in its ability to undergo electrostatic interaction with other components of a fire fighting composition thereby improving the performance of the fire fighting composition. Previously known fluorosurfactants comprise only one betaine group per molecule. In contrast, the present invention provides for a fluorobetaine copolymer containing a plurality of betaine groups.
Abstract:
Polymer composition comprising: 1) a polymer (P1) comprising at least 50 % by weight of monomeric units derived from an ethylenically unsaturated monomer (M1), and 2) at least one co-oligomer (O1) comprising at least: a) a component (A) comprising at least one monomeric unit identical to that derived from the monomer (M1) on which the polymer (P1) is based, and b) a component (B) comprising at least one monomeric unit (m2), derived from an ethylenically unsaturated monomer, carrying at least one group chosen from the following groups: -C a H 2a+1 with a between 6 and 30; -(CH 2 ) b -C c F 2c+1 with b between 1 and 11 and c greater than or equal to 5; -(CH 2 ) d -(Si(CH 3 ) 2 -O) e -Si(CH 3 ) 3 with d between 1 and 11 and e between 1 and 1000; -COOH; -S0 3 H, and the phosphonate groups -PO(OH)(OR 1 ) with R 1 being a hydrogen atom or an alkyl radical containing from 1 to 11 carbon atoms.