Dialkylaminoethyl vinyl ether interpolymers
    1.
    发明授权
    Dialkylaminoethyl vinyl ether interpolymers 失效
    二烷基氨基乙基乙烯基醚互聚物

    公开(公告)号:US3899471A

    公开(公告)日:1975-08-12

    申请号:US19153871

    申请日:1971-10-21

    Applicant: GAF CORP

    CPC classification number: C08F220/56 C02F1/54 C08F216/14 Y10S526/923

    Abstract: Water soluble dialkylaminoethyl vinyl ether interpolymers of the formula

    AND SALTS THEREOF WHEREIN R1 and R2 are each selected from the group consisting of methyl, ethyl, or hydroxyethyl or taken together with the N atom to which they are attached a heterocyclic ring, X and Y are selected from vinyl monomers copolymerizable with said other monomers and wherein the proportions of a, b, c and d of said monomer units in said interpolymer calculated on the basis of weight percent of the interpolymer amount to 80-10 weight percent of a, 70-10 weight percent of b, 30-0 weight percent of c, and 20-0 weight percent of d. The interpolymers of the invention are useful as flocculants and retention aids.

    Abstract translation: 式-CH 2 -CH 2 -CH 2 -CH(CH 3)-X- Y- || OC = O || CH 2 NH 2 | CH 2 | N ANGLE R2R2 abcd AND的水溶性二烷基氨基乙基乙烯基醚共聚体 其中R 1和R 2各自选自甲基,乙基或羟基乙基,或与它们所连接的N原子一起形成杂环,X和Y选自可与所述其它单体共聚的乙烯基单体和 其中所述互聚物中所述单体单元的a,b,c和d的比例基于互聚物的重量百分比计算为80-10重量%,70-10重量%的b,30-0重量% c的百分比和d的20-0重量%。

    Interpolymeric anti-clumping additives
    5.
    发明授权
    Interpolymeric anti-clumping additives 失效
    内分泌抗菌添加剂

    公开(公告)号:US3553183A

    公开(公告)日:1971-01-05

    申请号:US3553183D

    申请日:1969-03-27

    Applicant: GAF CORP

    CPC classification number: C08F267/04 C08F261/06 Y10S524/904 C08F222/06

    Abstract: PROCESS FOR INTERPOLYMERIZATION OF MALEIC ANHYDRIDE WITH ALKYL VINYL ETHERS IN THE PRESENCE OF AN ANTI-CLUMPING AGENT COMPRISING COPOLYMERS OF MALEIC ANHYDRIDE WITH HIGHER ALKYL VINYL ETHERS IN HIGH SOLIDS CONTENT WHEREBY THE INTERPOLYMER IS RECOVERED AS A FREE-FLOWING POWDER AFTER EVAPORATION OF THE SOLVENT AND IN WHICH THE ANTICLUMPING AGENT IS COMPATIBLE WITH THE LOWER ALKYL VINYL ETHER MALEIC ANHYDRIDE COPOLYMER AT SUBSTANTIALLY PH7 AND ABOVE EVEN AT THE BOILING POINT OF THE SOLUTION.

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