公开(公告)号：US20170198067A1

公开(公告)日：2017-07-13

申请号：US15326810

申请日：2015-07-21

Applicant: RELIANCE INDUSTRIES LIMITED

Inventor： Pradip MUNSHI ,  Jayesh Prafullachandra VORA ,  Ninad Deepak INGLE ,  Pradeep Paresh KAPADIA ,  Raksh Vir JASRA ,  Shashikant RAJAN

IPC: C08F8/22 ,  C08J7/12

CPC classification number: C08F8/22 ,  C08J3/28 ,  C08J7/126 ,  C08J2327/06 ,  C08F114/06

Abstract: The present disclosure relates to a process for the preparation of CPVC which includes reacting PVC with chlorine at a pre-determined temperature in the presence of at least one irradiation source having wavelength ranging from 254 and 530 nm while maintaining the radiant flux from 1.5 to 2 W/kg of PVC, irradiance at 0.13 W/cm2 and the number of photons emitted per second from 3×1018 to 5×1018, under agitation, for a time period ranging from 3 to 4 hours to obtain CPVC. The CPVC prepared from the afore-stated process has a whiteness index ranging from 89 to 96, a yellowness index ranging from 1.23 to 1.73 and stability ranging from 648 to 684 seconds. The rate of the chlorination reaction after employing the afore-stated process parameters ranges from 1.6 to 4.36 mole/hour/kg.

公开(公告)号：US20170029536A1

公开(公告)日：2017-02-02

申请号：US15221038

申请日：2016-07-27

Applicant: RELIANCE INDUSTRIES LIMITED

Inventor： Pradip MUNSHI ,  Ninad Deepak INGLE ,  Pradeep Paresh KAPADIA ,  Raksh Vir JASRA

IPC: C08F8/22

CPC classification number: C08F8/22 ,  B01J19/0013 ,  B01J19/12 ,  B01J19/123 ,  B01J19/127 ,  B01J2219/00051 ,  C08F114/06

Abstract: The present disclosure relates to a process for chlorination of a polymer. The process of the present disclosure includes minimum use of light and maximum chlorine utilization for getting maximum chlorination yield. The chlorinated polymer obtained by the process of the present disclosure exhibit improved properties viz. thermal stability, color, inherent viscosity and mechanical properties.

Abstract translation: 本公开涉及聚合物氯化方法。 本公开的方法包括最小使用光和最大氯利用率以获得最大的氯化产率。 通过本公开的方法获得的氯化聚合物显示出改进的性能， 热稳定性，颜色，固有粘度和机械性能。

公开(公告)号：US20160159945A1

公开(公告)日：2016-06-09

申请号：US14907108

申请日：2014-07-24

Applicant: RELIANCE INDUSTRIES LIMITED

Inventor： Pradip MUNSHI ,  Ninad Deepak INGLE ,  Pradeep Paresh KAPADIA ,  Vijay Shivaji KADAM ,  Ajit Behari MATHUR ,  Raksh Vir JASRA

IPC: C08F114/06

CPC classification number: C08F114/06 ,  C08F8/20 ,  C08F8/22

Abstract: The present disclosure provides a process for the reduction of residual acidity of halogenated polymer. The process involves treating the halogenated polymer to a physical process such as rotary vacuum drying and then neutralizing the treated halogenated polymer with alkaline metal salt solutions. The process requires less quantity of an economic neutralizing agent/base during chemical treatment, thus improving process economy without prejudicing quality of the final halogenated polymer.

Abstract translation: 本公开提供了降低卤化聚合物的残余酸度的方法。 该方法包括将卤代聚合物处理成诸如旋转真空干燥的物理过程，然后用碱金属盐溶液中和处理过的卤代聚合物。 该方法在化学处理期间需要较少量的经济中和剂/碱，从而改善工艺经济性，而不损害最终卤代聚合物的质量。

公开(公告)号：US20170210832A1

公开(公告)日：2017-07-27

申请号：US15326796

申请日：2015-07-21

Applicant: RELIANCE INDUSTRIES LIMITED

Inventor： Pradip MUNSHI ,  Ajit Behari MATHUR ,  Ninad Deepak INGLE ,  Pradeep Paresh KAPADIA ,  Raksh Vir JASRA

IPC: C08F8/22

CPC classification number: C08F8/22 ,  C08F114/06

Abstract: The present disclosure provides a process for the chlorination of polyvinyl chloride. PVC obtained during the suspension polymerization reaction is directly used for chlorination without filtration, drying and re-slurrying. The present process is carried out in the absence of additional chemicals/reagents; also reheating during the chlorination reaction is not required. CPVC manufactured using the process of the present disclosure has whiteness index greater than 85, yellowness index lower than 4 and thermal stability in the range of 300 to 550 seconds at 210° C.

公开(公告)号：US20160008786A1

公开(公告)日：2016-01-14

申请号：US14689211

申请日：2015-04-17

Applicant: RELIANCE INDUSTRIES LIMITED

Inventor： Rakshvir JASRA ,  Ninad Deepak INGLE ,  Pradeep Paresh KAPADIA ,  Pradip MUNSHI

IPC: B01J19/12 ,  C07C17/10

CPC classification number: B01J19/127 ,  B01J19/121 ,  B01J19/18 ,  B01J2219/1203 ,  C07C17/10 ,  C07C17/14 ,  C08C19/14 ,  C08F8/22 ,  C08F136/06 ,  C07C19/075 ,  C07C22/04 ,  C08F114/06 ,  C08F110/02

Abstract: The present disclosure relates to a process for the halogenation of hydrocarbon. In accordance with the process of the present disclosure a hydrocarbon and a halogen is introduced in a reaction vessel. Light having wavelength in the range of 390 to 780 nm is then passed into the reaction vessel for a time period of 2 to 12 hrs. to obtain a halogenated hydrocarbon. The hydrocarbon is agitated before or after the introduction of the halogen in to the reaction vessel.

Abstract translation: 本公开涉及一种卤化烃的方法。 根据本公开的方法，将烃和卤素引入反应容器中。 波长在390至780nm范围内的光然后通入反应容器2至12小时。 得到卤代烃。 在将卤素引入反应容器之前或之后搅拌烃。