阅读说明：本技术 聚碳酸酯用于制造中空容器的用途 (Polycarbonate is used to manufacture the purposes of hollow container ) 是由 A·S·塞拉克丹 R·K·辛格 P·塔瓦马尼 T·赛德 于 2018-05-08 设计创作，主要内容包括：本发明涉及通过双酚和二芳基碳酸酯的酯交换制备并且具有22000至32000g/mol的粘均分子量Mv、1.8-3.2的定义为Mw/Mn的多分散性、根据ASTM D 1238(1.2kg,300℃)测定的3.0-10g/10min的熔体流动指数、750至2500ppm的弗利斯支化的量的芳族聚碳酸酯用于借助注射吹塑或挤出吹塑法制造具有至少15升的体积的瓶子的用途。(The purposes of the bottle at least 15 liters of volume by injection-blow molding or extrusion blow molding processes manufacture is prepared and is used for the polydispersity that the definition of 22000 to 32000g/mol viscosity average molecular weigh Mv, 1.8-3.2 is Mw/Mn, according to the aromatic polycarbonate of the melt flow index of the 3.0-10g/10min of ASTM D 1238 (1.2kg, 300 DEG C) measurement, the amount of 750 to 2500ppm fries branching the present invention relates to the transesterification by bis-phenol and diaryl carbonate.)

1. being prepared by the transesterification of bis-phenol and diaryl carbonate and having aromatic polycarbonate below for by injection The purposes of the bottle of blow molding or extrusion blow molding processes manufacture at least 15 liters of volume:

- 22000 to 32000g/mol viscosity average molecular weigh Mv,

The definition of -1.8-3.2, preferably 2.0-3.0 are the polydispersity of Mw/Mn,

According to ASTM D 1238 (1.2kg, 300 DEG C) measurement 3.0-10g/10min melt flow index,

The amount of -750 to 2500ppm fries branching.

2. purposes according to claim 1, wherein the polycarbonate is linear polycarbonate.

3. purposes according to claim 1 or 2, wherein the bis-phenol is bisphenol-A and the diaryl carbonate is carbonic acid Diphenyl ester.

4. any one of -3 or multinomial purposes according to claim 1, wherein the amount of the fries branching is 1000- 2500, preferably 1500-2500ppm.

5. any one of -4 or multinomial purposes according to claim 1, wherein hollow container is bottle.

6. any one of -5 or multinomial purposes according to claim 1, wherein hollow container is that have at least 18.9 liter (5 U.S. gallon) volume bottle.

7. bottle, the bottle has at least 15 liters of volume, and passes through bis-phenol and two via injection-blow molding or extrusion-blown modling The polycarbonate of the transesterification preparation of aryl carbonates obtains, and the polycarbonate includes

- 22000 to 32000g/mol viscosity average molecular weigh Mv,

The definition of -1.8-3.2, preferably 2.0-3.0 are the polydispersity of Mw/Mn,

According to ASTM D 1238 (1.2kg, 300 DEG C) measurement 3.0-10g/10min melt flow index,

The amount of -750 to 2500ppm fries branching.

8. bottle according to claim 7, the bottle has the volume of at least 18.9 liters (5 U.S. gallon).

9. the method for manufacturing the bottle of the volume at least 15 liters, the described method comprises the following steps:

Make bis-phenol and diaryl carbonate melt transesterification with formed with 22000 to 32000g/mol viscosity average molecular weigh Mv, The polydispersity and the 3.0-10g/ measured according to ASTM D 1238 (1.2kg, 300 DEG C) that the definition of 1.8-3.2 is Mw/Mn The polycarbonate of the melt flow index of 10min,

The polycarbonate optionally is added in stabilizer and/or dyestuff,

Polycarbonate described in injection-blow molding or extrusion-blown modling is to form the bottle.

10. according to the method described in claim 9, wherein the bottle has the volume of at least 18.9 liters (5 U.S. gallon).

11. any one of -6 or multinomial purposes or bottle according to claim 7 or 8 according to claim 1, Wherein the polycarbonate also contains the boiling based on the poidometer 20-200ppm of the polycarbonate, preferably 70-150ppm weight Stone, the zeolite are suitable for removing aromatic molecules；Or method according to claim 9 or 10, the method are further wrapped It includes before bottle molding, adds based on the poidometer 20-200ppm of the polycarbonate, preferably 70-150ppm weight The step of zeolite, the zeolite are suitable for removing aromatic molecules.

Embodiment

According to melt transesterification process, BPA and DPC are used as starting material to manufacture polycarbonate.

Comparing embodiment is made of the branching polycarbonate manufactured according to interface method.Do not have known to this polycarbonate and appoints What fries branching.

Polycarbonate used in experiment has the following properties that.

Table 1

(Mn, Mw and Mv are measured using TDA-GPC)

Material specified in table 1 as above is used to manufacture bottle by extrusion blow molding processes in an experiment.The volume of bottle is 5 beauty Gallon (18.9 liters) processed.The setting operation indicated in equipment according to the form below 2 including single screw extrusion machine, extrusion die and mold.

Table 2

Bottle without any defects of vision can be produced by comparative polycarbonate and polycarbonate according to the present invention It is raw.Two kinds of bottles have also passed through drop test.Table 2 shows compared to comparing embodiment, polycarbonate as defined herein The production good bottle of quality is not only allowed for, and allows lower energy to disappear since the lower temperature of extruder and mould is arranged Consumption.

Material specified in table 1 as above is also used to manufacture bottle by injection-stretch-blow molding method (ISBM) in an experiment.Bottle The volume of son is 5 U.S. gallons (18.9 liters).Device therefor is commercially available injection-stretch-blow molding machine comprising is had Seven regions in three thermal regions and preheater (also referred to as hot pot) in five heating regions, hot flow path in machine barrel are squeezed Machine out.Hot pot is used to first adjust the prefabricated component prepared in hot flow path, so that the prefabricated component is blown as its final doleiform.Note Penetrating stretch blow mold apparatus is known to technical staff.

Setting in ISBM method is as follows, and wherein M/C refers to condition of moulding.

Table 3a: the ISBM setting of PC (embodiment) according to the present invention

Region	M/C(℃)	Hot flow path (DEG C)	Hot pot (DEG C)
				1	260	290	173
2	260	285	142
				3	270	335	140
4	260		140
				5	290		148
6			166
				7			240

Table 3b: the ISBM setting of PC (embodiment) according to the present invention

Region	M/C(℃)	Hot flow path (DEG C)	Hot pot (DEG C)
				1	285	290	200
2	285	290	185
				3	290	335	175
4	285		160
				5	290		160
6			170
				7			240

From comparison sheet 3a and 3b again it is clear that polycarbonate according to the present invention allow less energy consume, and For both experiment and comparative experiments, experiment produces the bottle of better quality.Two kinds of bottles have passed through drop test.

Zeolite addition

To with and without zeolite in the presence of the headspace GC MS technology carried out using the temperature at 200 DEG C is in volatile matter Polycarbonate is analyzed.Zeolite is810, it is added with the amount of 100ppm.It determines about phenol, 2,4- The surface area at the peak of di-t-butyl phenol and diphenyl carbonate.It was found that total surface area reduces 19% under given experimental condition, This shows that zeolite captures the molecule and it is prevented to discharge from material when carrying out the test of GCMS head space.