Patent KR-101337723-B1 (KR)
Title: Intrinsically gel-free, randomly branched polyamide
IPC: C08G69/02
Filed: 2006-06-19
Granted: 2013-12-06
Abstract: The invention relates to an intrinsically gel-free, randomly branched polyamide that is built up at least of units derived from AB monomers; at least one compound I, this being a dicarboxylic acid (A2); at least one compound II, this being a triamine (B3); and optionally a compound III, this being a monocarboxylic acid (A1), characterized in that the polyamide is also built up of units derived from at least one compound IV, this being a diamine (B2); and in that the relative amounts n of the said compounds satisfy the following relationships: <maths id="MATH-US-00001" num="00001"> <math overflow="scroll"> <mrow> <mn>0</mn> <mo><=</mo> <mfrac> <msub> <mi>n</mi> <mrow> <mi>A</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>1</mn> </mrow> </msub> <msub> <mi>n</mi> <mrow> <mi>B</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>3</mn> </mrow> </msub> </mfrac> <mo><=</mo> <mn>4</mn> </mrow> </math> </maths> <maths id="MATH-US-00001-2" num="00001.2"> <math overflow="scroll"> <mrow> <mn>1</mn> <mo><=</mo> <mfrac> <msub> <mi>n</mi> <mrow> <mi>A</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>2</mn> </mrow> </msub> <msub> <mi>n</mi> <mrow> <mi>B</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>3</mn> </mrow> </msub> </mfrac> <mo><=</mo> <mn>4</mn> </mrow> </math> </maths> <maths id="MATH-US-00001-3" num="00001.3"> <math overflow="scroll"> <mrow> <mn>200</mn> <mo><=</mo> <mfrac> <msub> <mi>n</mi> <mi>AB</mi> </msub> <msub> <mi>n</mi> <mrow> <mi>B</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>3</mn> </mrow> </msub> </mfrac> <mo><=</mo> <mn>2000</mn> </mrow> </math> </maths> <maths id="MATH-US-00001-4" num="00001.4"> <math overflow="scroll"> <mrow> <mfrac> <mn>2</mn> <mn>5</mn> </mfrac> <mo><=</mo> <mfrac> <msub> <mi>n</mi> <mrow> <mi>B</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>2</mn> </mrow> </msub> <msub> <mi>n</mi> <mrow> <mi>B</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>3</mn> </mrow> </msub> </mfrac> </mrow> </math> </maths> <maths id="MATH-US-00001-5" num="00001.5"> <math overflow="scroll"> <mrow> <mrow> <mn>0.996</mn> <mo><=</mo> <msub> <mover> <mi>f</mi> <mi>_</mi> </mover> <mrow> <mi>n</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mi>A</mi> </mrow> </msub> </mrow> <mo>=</mo> <mrow> <mfrac> <mrow> <msub> <mi>n</mi> <mrow> <mi>A</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>1</mn> </mrow> </msub> <mo>+</mo> <mrow> <mn>2</mn> <mo></mo> <msub> <mi>n</mi> <mrow> <mi>A</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>2</mn> </mrow> </msub> </mrow> <mo>+</mo> <msub> <mi>n</mi> <mi>AB</mi> </msub> </mrow> <mrow> <msub> <mi>n</mi> <mrow> <mi>A</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>1</mn> </mrow> </msub> <mo>+</mo> <msub> <mi>n</mi> <mrow> <mi>A</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>2</mn> </mrow> </msub> <mo>+</mo> <msub> <mi>n</mi> <mrow> <mi>B</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>2</mn> </mrow> </msub> <mo>+</mo> <msub> <mi>n</mi> <mrow> <mi>B</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>3</mn> </mrow> </msub> <mo>+</mo> <msub> <mi>n</mi> <mi>AB</mi> </msub> </mrow> </mfrac> <mo><=</mo> <mn>1</mn> </mrow> </mrow> </math> </maths> <maths id="MATH-US-00001-6" num="00001.6"> <math overflow="scroll"> <mrow> <mrow> <mn>0.98</mn> <mo><=</mo> <msub> <mover> <mi>f</mi> <mi>_</mi> </mover> <mrow> <mi>n</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mi>B</mi> </mrow> </msub> </mrow> <mo>=</mo> <mrow> <mfrac> <mrow> <mrow> <mn>2</mn> <mo></mo> <msub> <mi>n</mi> <mi>B2</mi> </msub> </mrow> <mo>+</mo> <mrow> <mn>3</mn> <mo></mo> <msub> <mi>n</mi> <mrow> <mi>B</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>3</mn> </mrow> </msub> </mrow> <mo>+</mo> <msub> <mi>n</mi> <mi>AB</mi> </msub> </mrow> <mrow> <msub> <mi>n</mi> <mrow> <mi>A</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>1</mn> </mrow> </msub> <mo>+</mo> <msub> <mi>n</mi> <mrow> <mi>A</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>2</mn> </mrow> </msub> <mo>+</mo> <msub> <mi>n</mi> <mrow> <mi>B</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>2</mn> </mrow> </msub> <mo>+</mo> <msub> <mi>n</mi> <mrow> <mi>B</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>3</mn> </mrow> </msub> <mo>+</mo> <msub> <mi>n</mi> <mi>AB</mi> </msub> </mrow> </mfrac> <mo><=</mo> <mn>1.004</mn> </mrow> </mrow> </math> </maths> <maths id="MATH-US-00001-7" num="00001.7"> <math overflow="scroll"> <mrow> <mrow> <mrow> <mn>2</mn> <mo></mo> <msub> <mi>n</mi> <mrow> <mi>B</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>2</mn> </mrow> </msub> </mrow> <mo>+</mo> <mrow> <mn>3</mn> <mo></mo> <msub> <mi>n</mi> <mrow> <mi>B</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>3</mn> </mrow> </msub> </mrow> </mrow> <mo><=</mo> <mrow> <mrow> <mfrac> <mn>1</mn> <mn>400</mn> </mfrac> <mo></mo> <msub> <mi>n</mi> <mi>AB</mi> </msub> </mrow> <mo>+</mo> <mrow> <mn>3</mn> <mo></mo> <msub> <mi>n</mi> <mrow> <mi>A</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mn>2</mn> </mrow> </msub> </mrow> </mrow> </mrow> </math> </maths>