公开(公告)号：US3629217A

公开(公告)日：1971-12-21

申请号：US3629217D

申请日：1969-07-28

Applicant: RHONE POULENC SA

Inventor： BALITRAND GEORGES ,  MISON ANDRE ,  ROGET JEAN ,  TARBOURIECH PHILIPPE

IPC: C08F2/00 ,  C08F20/44 ,  C08F3/76 ,  B01J1/00

CPC classification number: C08F20/44 ,  B01J19/0066 ,  B01J19/1812 ,  B01J2219/0004 ,  B01J2219/00094 ,  C08F2/36

Abstract: POLYACRYLONITRILE SOULTIONS SUITABLE FOR SPINNING ARE ADVANTAGEOUSLY PRODUCED BY SOULTION POLYMERISATION IN A REACTOR HAVING AN AXIAL SHAFT CARRYING DISC SEPARATING THE REACTOR INTO SEPARATE REACTION ZONES, TURBINES FOR STIRRING THE ZONES SEPARATELY, AND SCRAPERS FOR THE UPPER PART OF THE REACTOR.

Abstract translation: 1,230,510。 聚合装置; 连续排料混合装置。 RHONEPOULENC S.A. 1969年7月29日[1968年7月30日]，第38117/69号。 标题B1C和B1X。 [也在C3部分]用于丙烯腈的连续聚合的反应器3包括具有加热夹套14的柱13（参见图2）和包括承载盘17和涡轮16的轴向可旋转的轴15的反应混合系统。盘17 限定每个都具有至少一个涡轮16的“反应区”。具有相对间距的两个螺旋条带18刮去柱壁。 反应器可以分成两个或更多个串联安装的部件。 3（未示出）。 在操作单体中，催化剂和溶剂从储存器1,2（参见图1）进料到反应器3，然后将聚合物通入4，在那里将其搅拌并用来自储存器5的稀释剂稀释。齿轮泵6泵送稀释的聚合物 到去除溶剂和残留挥发性单体的水平膜蒸发器7。 然后将该溶液从齿轮泵8中取出，并且其粘度通过在纺丝到纱线之前通过添加来自储存器10的稀释剂而任意调节。

公开(公告)号：US3515705A

公开(公告)日：1970-06-02

申请号：US3515705D

申请日：1967-05-15

Applicant: RHONE POULENC SA

Inventor： BALITRAND GEORGES

IPC: C08F20/44 ,  C08F3/76 ,  C08F15/22

CPC classification number: C08F20/44 ,  C08F2/36 ,  Y10S526/915

Abstract: 1,126,302. Polymerization initiator. RHONEPOULENC S.A. 16 May, 1967 [17 May, 1966], No. 22727/67. Heading C3P. A polymerization initiator comprises (a) a peroxy compound, (b) an organic reducing agent and (c) a boron compound. It is used for the polymerization of acrylonitrile, optionally together with a vinyl or vinylidene comonomer, in an organic solvent. Specified peroxy compounds include H 2 O 2 , hydroperoxides, hydroxy hydroperoxides, peroxy acids and esters of such acids. The acid may be formed in situ from H 2 O 2 and the appropriate acid. Suitable reducing agents are glucose, benzoin, dihydroxyacetone, ascorbic, tartaric, lactic or citric acid, and stannous oxalate. The boron compound is e.g. boric oxide, a boric acid or an organic ester of ortho- or meta-boric acid. In Examples 1 to 7 and 11, acrylonitrile is polymerized in dimethyl formamide using as catalyst a combination of ascorbic acid and boric acid with cyclohexyl, t-butyl, cumene, pinane or methyl ethyl ketone hydroperoxide, H 2 O 2 and acetic acid, t-butyl peracetate or t-butyl perbenzoate. In Example 8, dimethyl sulphoxide is used as solvent and the catalyst comprises cyclohexyl, cumyl, t-butyl or pinane hydroperoxide or t-butyl perbenzoate, ascorbic acid and boric acid and in Example 9, dimethyl sulphoxide is the solvent and the catalyst comprises t-butyl perbenzoate, ascorbic acid and methyl or amyl borate, or the solvent is dimethyl formamide and the catalyst comprises t-butyl perbenzoate, ascorbic acid and B 2 O 3 , or cyclohexyl hydroperoxide, ascorbic acid and methyl borate. The catalyst in Example 10 is t-butyl perbenzoate, benzoin and boric acid. In Example 12, a terpolymer of acrylonitrile, methyl methacrylate and potassium p-vinyloxy benzene sulphonate is produced in dimethyl formamide using cumene hydroperoxide, ascorbic acid and methyl borate or in dimethyl sulphoxide using t-butyl perbenzoate, ascorbic acid and boric acid; copolymers of acrylonitrile with vinylidene chloride, vinyl acetate or styrene are also formed in dimethyl formamide using as catalyst methyl ethyl ketone hydroperoxide, ascorbic acid and methyl borate.